We first examine the prime factorization of each:
36=2*2*3*3
72=2*2*2*3*3
144=2*2*2*2*3*3
I have bolded all of the factors that they have in common, and the product of those factors is 36.
Another way to look at is to notice that:
36*1=36
36*2=72
36*4=144
And that all of them have 36 as a factor, but this is based more on instinct than method.
tl;dr gcf=36
The GCF is 12.
The GCF of 144 and 252 is 36
The GCF is 18.
The GCF is 36.
The Greatest Common Factor (GCF) of 216, 168, 144, 72, and 48 is 24
The GCF of 72 144 and 36 is 36.
The GCF is 12.
GCF (72, 144, 180) = 36
Greatest common factor of 144 and 216 is 72.
The GCF is 72.
The GCF of 72 and 144 is 72. Since 72 is a factor of 144, it is automatically the GCF.
It is: 72
The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72The factors of 144 are: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144The common factors are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72The Greatest Common Factor (GCF) is: 72
The Greatest Common Factor (GCF) is: 36
The GCF of 144 and 252 is 36
The GCF is: 72
The GCF of 72 and 36 is equal to 36.