Primary 4 Mathematics — Factors and Multiples Practice | Standard

Standard Mathematics Primary 4 Factors and Multiples

What is the greatest common factor (GCF) of 24 and 36?

A 12

B 6

C 4

D 72

Show Worked Solution

Worked Solution

Step 1: List all factors of 24. 24: 1, 2, 3, 4, 6, 8, 12, 24 Step 2: List all factors of 36. 36: 1, 2, 3, 4, 6, 9, 12, 18, 36 Step 3: Identify the common factors. Common factors: 1, 2, 3, 4, 6, 12 Step 4: Select the greatest common factor. GCF = 12 Answer: The greatest common factor of 24 and 36 is 12.

Correct answer: 12

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