What is the gcf and lcm of 18 and 15

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asked Aug 5, 2016 1.9k views

1 Answer

UnsignedByte · Answer 1 · 2016-08-11T11:25:09+0000

greatest common factor is the biggest number common to both
least common multipule is the smallest number that both will multily to get

find the factors
18=2 times 3 times 3
15=3 times 5
gcf=3

lcm=2 times 3 times 3 times 5=90

What is the gcf and lcm of 18 and 15

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