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Question
Express the following as a product of powers of their prime factors:
800
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Solution
| 2 | 800 |
| 2 | 400 |
| 2 | 200 |
| 2 | 100 |
| 2 | 50 |
| 5 | 25 |
| 5 | 5 |
| 1 |
Using prime factorisation of 800, we have
800 = 2 × 2 × 2 × 2 × 2 × 5 × 5
∴ 800 = 25 × 52
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