What is the least common multiple of 3, 2, and 15?

1 Answer
Meave60
Jan 20, 2017

The LCM for #3, 2#, and #15# is #color(red)30#.

Explanation:

In order to determine the least common multiple (LCM), list the multiples of each number. The lowest number that they all have in common is the LCM.

#3:##3,6,9,12,15,18,21,24,27, color(red)(30),33,39...#

#2:##2,4,6,8,10,12,14,16,18,20,22,24,26,28,color(red)(30),32...#

#15:##15,color(red)30,45,60...#

The LCM for #3, 2#, and #15# is #color(red)30#.

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