Question #27512

1 Answer
David Drayer
Oct 12, 2017

78

Explanation:

To the find the LCM factor both number and use each unique factor only once

# 26 = 2 xx 13#

# 39 = 3 xx 13# each has a factor of 13 so that is not unique

The unique factors are 2, 3 and 13 so the LCM is

# 2 xx 3 xx 13 = 78#

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