Primary 4 Mathematics — Factors and Multiples Practice | Standard

Standard Mathematics Primary 4 Factors and Multiples

Which of the following numbers is a multiple of both 3 and 5?

A 9

B 10

C 15

D 20

Show Worked Solution

Worked Solution

Step 1: Check 15: Is 15 divisible by 3? 15 ÷ 3 = 5 ✓ Step 2: Is 15 divisible by 5? 15 ÷ 5 = 3 ✓ Step 3: 15 is a multiple of both 3 and 5. Step 4: We can also write: 15 = 3 × 5.

Correct answer: 15

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