Q: What is the LCM of 21and 15?

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The LCM is: 42

It is 231

It is 42

It is: 210

3

The LCM of 21 & 30 is... 210

252

21=1x3x7 75=1x3x5x5 LCM=1x3x5x5x7=525

21 = 3*7 56 = 23*7 LCM = 23 * 3 * 7 = 168

LCM(21, 14) = 42.

3

The Least Common Multiple (LCM) for 21 24 is 168.