How do you find the least common multiple of 8 and 10?

1 Answer
sjc
Jul 22, 2017

#40#

Explanation:

One way is to list the multiples of each number, then choose the common multiples, then the least one.

multiples of#" "8:{8,16,24,32,color(blue)(40),48,56,64,72,color(blue)(80),...}#

multiples of#" "10:{10,20,30,color(blue)(40),50,60,70,color(blue)(80),90,...}#

common multiples #" "{color(blue)(40,80,..)}#

#LCM(8,10)=40#

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