Sum
Find the LCM of the numbers 16, 20, 80.
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Solution
| 4 | 16 | 20 | 80 |
| 4 | 4 | 5 | 20 |
| 5 | 1 | 5 | 5 |
| 1 | 1 | 1 |
16 = 2 × 2 × 2 × 2
20 = 2 × 2 × 5
80 = 2 × 2 × 2 × 2 × 5
LCM = 4 × 4 × 5 = 80.
Concept: Lowest Common Multiple
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