The GCF is 18.
The GCF is 6.
The GCF is 6.
The GCF is 9.
The GCF is 18.
GCF is 18:54 = 18 x 372 = 18 x 490 = 18 x 5
It is: 18.
It is: 18
The GCF is 18.
GCF(36, 54, 72) = 18.
9
The GCF is 18.
The GCF of 54, 72, and 81 is 9.The prime factorization of 54 is 2*3*3*3The prime factorization of 72 is 2*2*2*3*3The prime factorization of 81 is 3*3*3*3The GCF, then, is 3*3 = 9