{
  "title": "Factors - Grade 4 ICSE",
  "total_questions": 60,
  "questions": [
    {
      "id": 1,
      "difficulty": "easy",
      "question": "🐱 Which of these are factors of 6? 🐟",
      "options": {
        "A": "1, 2, 3",
        "B": "2, 4, 6",
        "C": "3, 6, 9",
        "D": "1, 3, 5"
      },
      "correct_answer": "A"
    },
    {
      "id": 2,
      "difficulty": "easy",
      "question": "🍎 Find all factors of 8 🍏",
      "options": {
        "A": "1, 2, 4",
        "B": "1, 2, 4, 8",
        "C": "2, 4, 6, 8",
        "D": "1, 3, 4, 8"
      },
      "correct_answer": "B"
    },
    {
      "id": 3,
      "difficulty": "easy",
      "question": "📚 Which number is a factor of 12? 📖",
      "options": { "A": "5", "B": "7", "C": "8", "D": "4" },
      "correct_answer": "D"
    },
    {
      "id": 4,
      "difficulty": "easy",
      "question": "⚽ Factors of 10 are? 🏀",
      "options": {
        "A": "1, 2, 5",
        "B": "1, 2, 5, 10",
        "C": "2, 5, 10",
        "D": "1, 5, 10"
      },
      "correct_answer": "B"
    },
    {
      "id": 5,
      "difficulty": "easy",
      "question": "🎨 Which is NOT a factor of 9? 🖌️",
      "options": { "A": "1", "B": "3", "C": "6", "D": "9" },
      "correct_answer": "C"
    },
    {
      "id": 6,
      "difficulty": "easy",
      "question": "🐶 How many factors does 7 have? 🐱",
      "options": { "A": "1", "B": "2", "C": "3", "D": "4" },
      "correct_answer": "B"
    },
    {
      "id": 7,
      "difficulty": "easy",
      "question": "🍕 Find factors of 15 🍔",
      "options": {
        "A": "1, 3, 5",
        "B": "1, 3, 5, 15",
        "C": "3, 5, 15",
        "D": "1, 5, 15"
      },
      "correct_answer": "B"
    },
    {
      "id": 8,
      "difficulty": "easy",
      "question": "🎯 Which is a factor of 20? 🎮",
      "options": { "A": "3", "B": "6", "C": "8", "D": "10" },
      "correct_answer": "D"
    },
    {
      "id": 9,
      "difficulty": "easy",
      "question": "🚗 Factors of 16 are? 🚌",
      "options": {
        "A": "1, 2, 4, 8",
        "B": "1, 2, 4, 8, 16",
        "C": "2, 4, 8, 16",
        "D": "1, 4, 8, 16"
      },
      "correct_answer": "B"
    },
    {
      "id": 10,
      "difficulty": "easy",
      "question": "🌟 How many factors does 4 have? ⭐",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "B"
    },
    {
      "id": 11,
      "difficulty": "easy",
      "question": "🍦 Which is NOT a factor of 18? 🍰",
      "options": { "A": "2", "B": "7", "C": "6", "D": "9" },
      "correct_answer": "B"
    },
    {
      "id": 12,
      "difficulty": "easy",
      "question": "📏 Find all factors of 24 📐",
      "options": {
        "A": "1, 2, 3, 4, 6, 8, 12",
        "B": "1, 2, 3, 4, 6, 8, 12, 24",
        "C": "2, 3, 4, 6, 8, 12, 24",
        "D": "1, 3, 4, 6, 8, 12, 24"
      },
      "correct_answer": "B"
    },
    {
      "id": 13,
      "difficulty": "easy",
      "question": "🐟 Which number is a factor of 14? 🐠",
      "options": { "A": "3", "B": "4", "C": "5", "D": "7" },
      "correct_answer": "D"
    },
    {
      "id": 14,
      "difficulty": "easy",
      "question": "🎈 Factors of 21 are? 🎈",
      "options": {
        "A": "1, 3, 7",
        "B": "1, 3, 7, 21",
        "C": "3, 7, 21",
        "D": "1, 7, 21"
      },
      "correct_answer": "B"
    },
    {
      "id": 15,
      "difficulty": "easy",
      "question": "🚲 How many factors does 25 have? 🛴",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "B"
    },
    {
      "id": 16,
      "difficulty": "easy",
      "question": "🍫 Which is a factor of 30? 🍭",
      "options": { "A": "4", "B": "8", "C": "12", "D": "15" },
      "correct_answer": "D"
    },
    {
      "id": 17,
      "difficulty": "easy",
      "question": "📚 Find factors of 28 📖",
      "options": {
        "A": "1, 2, 4, 7, 14",
        "B": "1, 2, 4, 7, 14, 28",
        "C": "2, 4, 7, 14, 28",
        "D": "1, 4, 7, 14, 28"
      },
      "correct_answer": "B"
    },
    {
      "id": 18,
      "difficulty": "easy",
      "question": "🎨 Which is NOT a factor of 36? 🖼️",
      "options": { "A": "4", "B": "8", "C": "9", "D": "12" },
      "correct_answer": "B"
    },
    {
      "id": 19,
      "difficulty": "easy",
      "question": "⚽ How many factors does 11 have? 🏈",
      "options": { "A": "1", "B": "2", "C": "3", "D": "4" },
      "correct_answer": "B"
    },
    {
      "id": 20,
      "difficulty": "easy",
      "question": "🍎 Factors of 32 are? 🍏",
      "options": {
        "A": "1, 2, 4, 8, 16",
        "B": "1, 2, 4, 8, 16, 32",
        "C": "2, 4, 8, 16, 32",
        "D": "1, 4, 8, 16, 32"
      },
      "correct_answer": "B"
    },

    {
      "id": 21,
      "difficulty": "medium",
      "question": "🏫 Find all factors of 48 🏢",
      "options": {
        "A": "1, 2, 3, 4, 6, 8, 12, 16, 24",
        "B": "1, 2, 3, 4, 6, 8, 12, 16, 24, 48",
        "C": "2, 3, 4, 6, 8, 12, 16, 24, 48",
        "D": "1, 3, 4, 6, 8, 12, 16, 24, 48"
      },
      "correct_answer": "B"
    },
    {
      "id": 22,
      "difficulty": "medium",
      "question": "🚀 Which is NOT a factor of 60? ✈️",
      "options": { "A": "12", "B": "15", "C": "18", "D": "20" },
      "correct_answer": "C"
    },
    {
      "id": 23,
      "difficulty": "medium",
      "question": "🌟 How many factors does 72 have? ⭐",
      "options": { "A": "10", "B": "11", "C": "12", "D": "13" },
      "correct_answer": "C"
    },
    {
      "id": 24,
      "difficulty": "medium",
      "question": "🎯 Find the common factors of 12 and 18 🎮",
      "options": {
        "A": "1, 2, 3",
        "B": "1, 2, 3, 6",
        "C": "2, 3, 6",
        "D": "1, 3, 6"
      },
      "correct_answer": "B"
    },
    {
      "id": 25,
      "difficulty": "medium",
      "question": "🍕 Which number has exactly 4 factors? 🍔",
      "options": {
        "A": "9",
        "B": "12",
        "C": "10",
        "D": "16"
      },
      "correct_answer": "C"
    },
    {
      "id": 26,
      "difficulty": "medium",
      "question": "📚 Find all factors of 64 📖",
      "options": {
        "A": "1, 2, 4, 8, 16, 32",
        "B": "1, 2, 4, 8, 16, 32, 64",
        "C": "2, 4, 8, 16, 32, 64",
        "D": "1, 4, 8, 16, 32, 64"
      },
      "correct_answer": "B"
    },
    {
      "id": 27,
      "difficulty": "medium",
      "question": "🚗 Which is a factor of 100? 🚚",
      "options": { "A": "25", "B": "30", "C": "40", "D": "60" },
      "correct_answer": "A"
    },
    {
      "id": 28,
      "difficulty": "medium",
      "question": "🎨 Common factors of 24 and 36? 🖌️",
      "options": {
        "A": "1, 2, 3, 4, 6, 12",
        "B": "1, 2, 3, 4, 6, 8, 12",
        "C": "2, 3, 4, 6, 12",
        "D": "1, 3, 4, 6, 12"
      },
      "correct_answer": "A"
    },
    {
      "id": 29,
      "difficulty": "medium",
      "question": "🍦 Which number has exactly 3 factors? 🍰",
      "options": {
        "A": "6",
        "B": "9",
        "C": "16",
        "D": "27"
      },
      "correct_answer": "B"
    },
    {
      "id": 30,
      "difficulty": "medium",
      "question": "⚽ Find factors of 84 ⚾",
      "options": {
        "A": "1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84",
        "B": "1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42",
        "C": "2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84",
        "D": "1, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84"
      },
      "correct_answer": "A"
    },
    {
      "id": 31,
      "difficulty": "medium",
      "question": "🐱 Which is NOT a factor of 96? 🐶",
      "options": { "A": "24", "B": "32", "C": "36", "D": "48" },
      "correct_answer": "C"
    },
    {
      "id": 32,
      "difficulty": "medium",
      "question": "📏 How many factors does 90 have? 📐",
      "options": { "A": "10", "B": "11", "C": "12", "D": "13" },
      "correct_answer": "C"
    },
    {
      "id": 33,
      "difficulty": "medium",
      "question": "🍎 Common factors of 45 and 60? 🍏",
      "options": {
        "A": "1, 3, 5, 15",
        "B": "1, 3, 5, 15, 45",
        "C": "3, 5, 15",
        "D": "1, 5, 15"
      },
      "correct_answer": "A"
    },
    {
      "id": 34,
      "difficulty": "medium",
      "question": "🎈 Which number has exactly 6 factors? 🎈",
      "options": {
        "A": "12",
        "B": "16",
        "C": "24",
        "D": "30"
      },
      "correct_answer": "A"
    },
    {
      "id": 35,
      "difficulty": "medium",
      "question": "🚲 Find all factors of 120 🛴",
      "options": {
        "A": "1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120",
        "B": "1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60",
        "C": "2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120",
        "D": "1, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120"
      },
      "correct_answer": "A"
    },
    {
      "id": 36,
      "difficulty": "medium",
      "question": "🍫 Which is a factor of 144? 🍭",
      "options": { "A": "13", "B": "14", "C": "16", "D": "18" },
      "correct_answer": "C"
    },
    {
      "id": 37,
      "difficulty": "medium",
      "question": "📚 How many factors does 49 have? 📖",
      "options": { "A": "2", "B": "3", "C": "4", "D": "5" },
      "correct_answer": "B"
    },
    {
      "id": 38,
      "difficulty": "medium",
      "question": "🎯 Common factors of 56 and 84? 🎮",
      "options": {
        "A": "1, 2, 4, 7, 14, 28",
        "B": "1, 2, 4, 7, 14",
        "C": "2, 4, 7, 14, 28",
        "D": "1, 4, 7, 14, 28"
      },
      "correct_answer": "A"
    },
    {
      "id": 39,
      "difficulty": "medium",
      "question": "🏫 Which is NOT a factor of 180? 🏢",
      "options": { "A": "9", "B": "12", "C": "15", "D": "24" },
      "correct_answer": "D"
    },
    {
      "id": 40,
      "difficulty": "medium",
      "question": "🚀 Find factors of 150 ✈️",
      "options": {
        "A": "1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150",
        "B": "1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75",
        "C": "2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150",
        "D": "1, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150"
      },
      "correct_answer": "A"
    },

    {
      "id": 41,
      "difficulty": "hard",
      "question": "🌟 Find all factors of 210 ⭐",
      "options": {
        "A": "1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210",
        "B": "1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105",
        "C": "2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210",
        "D": "1, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210"
      },
      "correct_answer": "A"
    },
    {
      "id": 42,
      "difficulty": "hard",
      "question": "🎯 Which number has exactly 8 factors? 🎮",
      "options": { "A": "24", "B": "30", "C": "36", "D": "40" },
      "correct_answer": "A"
    },
    {
      "id": 43,
      "difficulty": "hard",
      "question": "🍕 Common factors of 108 and 144? 🍔",
      "options": {
        "A": "1, 2, 3, 4, 6, 9, 12, 18, 36",
        "B": "1, 2, 3, 4, 6, 9, 12, 18, 36, 108",
        "C": "2, 3, 4, 6, 9, 12, 18, 36",
        "D": "1, 3, 4, 6, 9, 12, 18, 36"
      },
      "correct_answer": "A"
    },
    {
      "id": 44,
      "difficulty": "hard",
      "question": "📚 How many factors does 256 have? 📖",
      "options": { "A": "7", "B": "8", "C": "9", "D": "10" },
      "correct_answer": "C"
    },
    {
      "id": 45,
      "difficulty": "hard",
      "question": "🚗 Which is NOT a factor of 360? 🚚",
      "options": { "A": "18", "B": "24", "C": "32", "D": "45" },
      "correct_answer": "C"
    },
    {
      "id": 46,
      "difficulty": "hard",
      "question": "🎨 Find all factors of 300 🖌️",
      "options": {
        "A": "1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300",
        "B": "1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150",
        "C": "2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300",
        "D": "1, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300"
      },
      "correct_answer": "A"
    },
    {
      "id": 47,
      "difficulty": "hard",
      "question": "⚽ Which number has exactly 10 factors? ⚾",
      "options": { "A": "48", "B": "60", "C": "72", "D": "84" },
      "correct_answer": "A"
    },
    {
      "id": 48,
      "difficulty": "hard",
      "question": "🐱 Common factors of 126 and 168? 🐶",
      "options": {
        "A": "1, 2, 3, 6, 7, 14, 21, 42",
        "B": "1, 2, 3, 6, 7, 14, 21",
        "C": "2, 3, 6, 7, 14, 21, 42",
        "D": "1, 3, 6, 7, 14, 21, 42"
      },
      "correct_answer": "A"
    },
    {
      "id": 49,
      "difficulty": "hard",
      "question": "📏 How many factors does 441 have? 📐",
      "options": { "A": "7", "B": "8", "C": "9", "D": "10" },
      "correct_answer": "C"
    },
    {
      "id": 50,
      "difficulty": "hard",
      "question": "🍎 Which is a factor of 512? 🍏",
      "options": { "A": "32", "B": "48", "C": "64", "D": "96" },
      "correct_answer": "C"
    },
    {
      "id": 51,
      "difficulty": "hard",
      "question": "🚲 Find all factors of 420 🛴",
      "options": {
        "A": "1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420",
        "B": "1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210",
        "C": "2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420",
        "D": "1, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420"
      },
      "correct_answer": "A"
    },
    {
      "id": 52,
      "difficulty": "hard",
      "question": "🎈 Which number has exactly 12 factors? 🎈",
      "options": { "A": "60", "B": "72", "C": "84", "D": "90" },
      "correct_answer": "B"
    },
    {
      "id": 53,
      "difficulty": "hard",
      "question": "🍫 Common factors of 180 and 240? 🍭",
      "options": {
        "A": "1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60",
        "B": "1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30",
        "C": "2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60",
        "D": "1, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60"
      },
      "correct_answer": "A"
    },
    {
      "id": 54,
      "difficulty": "hard",
      "question": "📚 How many factors does 625 have? 📖",
      "options": { "A": "3", "B": "4", "C": "5", "D": "6" },
      "correct_answer": "C"
    },
    {
      "id": 55,
      "difficulty": "hard",
      "question": "🏫 Which is NOT a factor of 504? 🏢",
      "options": { "A": "14", "B": "18", "C": "21", "D": "27" },
      "correct_answer": "D"
    },
    {
      "id": 56,
      "difficulty": "hard",
      "question": "🚀 Find all factors of 720 ✈️",
      "options": {
        "A": "1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720",
        "B": "1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360",
        "C": "2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720",
        "D": "1, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720"
      },
      "correct_answer": "A"
    },
    {
      "id": 57,
      "difficulty": "hard",
      "question": "🎯 Which number has exactly 16 factors? 🎮",
      "options": { "A": "120", "B": "144", "C": "180", "D": "210" },
      "correct_answer": "A"
    },
    {
      "id": 58,
      "difficulty": "hard",
      "question": "🍦 Common factors of 315 and 420? 🍰",
      "options": {
        "A": "1, 3, 5, 7, 15, 21, 35, 105",
        "B": "1, 3, 5, 7, 15, 21, 35",
        "C": "3, 5, 7, 15, 21, 35, 105",
        "D": "1, 5, 7, 15, 21, 35, 105"
      },
      "correct_answer": "A"
    },
    {
      "id": 59,
      "difficulty": "hard",
      "question": "⚽ How many factors does 1024 have? ⚾",
      "options": { "A": "9", "B": "10", "C": "11", "D": "12" },
      "correct_answer": "C"
    },
    {
      "id": 60,
      "difficulty": "hard",
      "question": "📏 Which is a factor of 1000? 📐",
      "options": { "A": "25", "B": "30", "C": "40", "D": "60" },
      "correct_answer": "A"
    }
  ]
}