What is the least common multiple of 10 and 8?

1 Answer
David Drayer
Mar 13, 2018

40

Explanation:

Factor both numbers and look for unique non repeated factors.
Multiply the unique non repeated factors to find the Least Common Multiple

# 10 = 2 xx 5 #
# 8 = 2 xx 2 xx 2 #

There are three unique factors of 2. 10 has 1 8 has 3 so the 1 factor of 2 in 10 is repeated in the 3 factors of 2 in 8 .

There is 1 factor of 5 so

The Least Common Factor = # 2 xx 2 xx 2 xx 5 = 40#

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