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Question
Find the prime factorisation number by factor tree method and division method.
999
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Solution
999
∴ 999 = 3 × 3 × 3 × 37
Also
| 3 | 999 |
| 3 | 333 |
| 3 | 111 |
| 37 | 37 |
| 1 |
999 = 3 × 333
= 3 × 3 × 111
= 3 × 3 × 3 × 37
∴ 999 = 3 × 3 × 3 × 37
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