4MA0 Foundation June 2017 Paper 1R Q22
22 Write 336 as a product of its prime factors.
Show your working clearly.
(3)
| Scheme | Marks |
|---|---|
| e.g. 2 × 2 × 7 × 12 or at least 3 divisions in a factor tree | M1 |
| All 6 correct prime factors, no extras (2,2,2,2,3,7,(1)) | M1 |
| 2×2×2×2×3×7 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for the start of a correct method
e.g. may be a factor tree or consecutive divisions
condone 1 error
M1: e.g. from a factor tree, ignore 1s
A1: oe dep on M1, M1