Year 5: Factors, primes and square numbers

Use factors, multiples, primes and square numbers.

Your worksheet

8 original questions with answers and explanations. Use factors, multiples, primes and square numbers.

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List every factor of 24.
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1, 2, 3, 4, 6, 8, 12, 24
Each number divides 24 exactly.
Which are prime: 9, 11, 15, 17?
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11 and 17
Each has exactly two factors: 1 and itself.
Find the lowest positive common multiple of 6 and 8.
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24
6 x 4 and 8 x 3 both equal 24.
Calculate 7 squared.
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49
7 x 7 = 49.
Calculate 3 cubed.
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27
3 x 3 x 3 = 27.
Is 1 prime? Explain.
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No. It has only one factor.
A prime number must have exactly two factors.
Find the missing factor: 12 x ___ = 96.
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8
96 divided by 12 = 8.
Two lights flash every 4 seconds and 10 seconds. They flash together now. After how many seconds do they next flash together?
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20 seconds
20 is the first common multiple of 4 and 10.

All questions, passages and answer guidance were written originally for Trace Learn. Curriculum sources define the teaching scope only.

Curriculum source checked 2026-09-30.

What does this worksheet practise?

Use factors, multiples, primes and square numbers.

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Try each question before opening its answer. Compare your method with the explanation, then revisit any question you found difficult.

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