Higher June 2025 Paper 2 Q1
1
(a) Work out the highest common factor (HCF) of 16 and 24 [1 mark]
(b) Work out the lowest common multiple (LCM) of 10 and 15 [1 mark]
(c) Write 42 as a product of its prime factors. [1 mark]
| Answer | Mark | Comments |
|---|---|---|
| 8 | B1 |
| Answer | Mark | Comments |
|---|---|---|
| 30 | B1 |
| Answer | Mark | Comments |
|---|---|---|
| \(2 \times 3 \times 7\) | B1 | numbers in any order |
Additional guidance
| Condone full stops for multiplication signs | B1 |
| Ignore irrelevant brackets | |
| Do not allow multiplication by one(s) | B0 |
| 2, 3 and 7 circled on a factor tree with no evidence of multiplication | B0 |