Foundation Mathematics Primary 4 Factors and Multiples

Mrs Lim arranged her 24 spelling-test cards into equal rows for marking. Which of the following is a factor of 24?

A 6
B 5
C 9
D 10
Show Worked Solution

Worked Solution

Step 1: Recall the definition. A factor of 24 is a whole number that divides 24 exactly, leaving no remainder. Step 2: Test each option by dividing 24 by it: 24 ÷ 5 = 4 remainder 4 → NOT a factor. 24 ÷ 6 = 4 remainder 0 → IS a factor. ✓ 24 ÷ 9 = 2 remainder 6 → NOT a factor. 24 ÷ 10 = 2 remainder 4 → NOT a factor. Step 3: Confirm with multiplication: 6 × 4 = 24 ✓. All factors of 24 for reference: 1, 2, 3, 4, 6, 8, 12, 24. Answer: 6

Correct answer: 6

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