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Nanyang 2025 P6 Maths Prelim — Paper 1 Booklet B Q21 Solution

Paper 1 Booklet B · Q21 · 2 marks · Whole Numbers

Question

Write down all the common factors of 18 and 45.
Answer: 1, 3, 9

Worked solution

  1. Factors of $18$: $1, 2, 3, 6, 9, 18$. Factors of $45$: $1, 3, 5, 9, 15, 45$. Common factors: $1, 3, 9$.

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