least common multiple of 12,15 and 22

there is a question ask to find the least common factor for the numbers 8, 12, 18 and 20
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1 Answer

12=2×2×3

15=3×5

22=2×11

So LCM must contain two 2s, one 3, one 5, and 11 as factors:

2×2×3×5×11=660.

2 is both the least and the highest common factor of 8, 12, 18, 20.

by Top Rated User (1.2m points)

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