Verified Answer :

Ammimochi

LCM - Least common denominator.
GCF - Greatest common factor.
There's a huge difference. LCM is the least common denominator and GCF, being the greatest common factor. 

apologiabiology

LCM=least common multipule, means the smallest number that both are a multipule are, like how 6 is a a multipule of 3 and 2

GCF=greatest common factor, the biggest factor that is common to both numbers


example
18 and 24
finding LCM
factor each
18=233
24=2223
LCM=22233=72
LCM=72

finding GCF
factor each
18=233
24=2223
GCF=2*3 or 6

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