How it works
A factor pair is two numbers that multiply to make the number.
A multiple is what you get counting by a number: 2, 4, 6, 8.
A prime has only two factors: 1 and itself.
Worked examples
A missing partner
- 6 × ? = 30
- 6 times what makes 30?
- Think of the 6 times table.
- So the answer is 5.
A multiple
- Is 28 a multiple of 2?
- Count by 2s: 2, 4, 6 and on.
- 28 is in the 2s.
- So the answer is Yes.
All the factors of 48
- Try 1, 2, 3, 4, 6 and 8, as they all divide into 48.
- 1 × 48, 2 × 24, 3 × 16, 4 × 12, 6 × 8.
- The factors are 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48.
A taste of the worksheet
These are the first problems of set A. The printable sheet has many more, with an answer key.
- 12 tiles are in 4 equal rows. How many tiles are in each row? 4 × ___ = 12
- 30 tiles are in 5 equal rows. How many tiles are in each row? 5 × ___ = 30
- Which array shows 24 tiles?
- 6 × ___ = 24
- Is 15 a multiple of 5?