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Question
Find the prime factorisation number by factor tree method and division method.
60
Solution
60
∴ 60 = 2 × 2 × 3 × 5
Also
| 2 | 60 |
| 2 | 30 |
| 3 | 15 |
| 5 | 5 |
| 1 |
60 = 2 × 30
= 2 × 2 × 15
∴ 60 = 2 × 2 × 3 × 5
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