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You are watching: What is the least common multiple of 15 and 21

We think friend wrote:

### lcm(15,21,24)

This encounters the least common multiple (LCM) by element factorization.

## 1. discover the prime determinants of 15

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Determine the maximum number of times every prime variable (2, 3, 5, 7) wake up in the administer of the given numbers: