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Question
Find the LCM:
105, 195
Solution
| 3 | 105 |
| 5 | 35 |
| 7 | 7 |
| 1 |
| 3 | 195 |
| 5 | 65 |
| 13 | 13 |
| 1 |
105 = 3 × 5 × 7
195 = 3 × 5 × 13
∴ LCM = 3 × 5 × 7 × 13
= 15 × 91
= 1365
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