What is the least common multiple of 8, 10, 12?

2 Answers
Shwetank Mauria · Kushagra
Apr 6, 2016

Explanation:

Multiples of #8# are #{8,16,24,32,40,48,56,64,72,80,88,96,104,112,color(red)120,....}#

Multiples of #10# are #{10,20,30,40,50,60,70,80,90,100,110,color(red)120,....}#

Multiples of #12# are #{12,24,36,48,60,72,84,96,108,color(red)120,....}#

Hence common multiples are #{120,240,----}#

and Least Common Multiple is #120#

José F.
Jan 10, 2018

The general rule is to decompose the numbers into prime factors and then the lcm in the product of all factors raised to the highest power found in those numbers.

#8=2^3#

#10=2xx5#

#12=2^2xx3#

#lcm(8,10,12)= 2^3xx3xx5=120#

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