step 1: list all of the prime numbers that go into 36 and 145.
2*2*3*3=36
5*29=145
step 2: find all the common prime numbers between both sets.
because there are no common prime numbers, the answer has to be 1.
Prime factorization of 36 = 22 × 32 Prime factorization of 145 = 5 × 29 gcf(36,145) = 1
the GCF of 145 and 174 is 29.
GCF(105, 145, 189) = 1: the three are coprime.
The GCF is 5.
The GCF is 5.
GCF(145, 60) = 5.
The GCF is 5.
The GCF is 36.
The GCF is 6.
The factors of 59 are: 1, 59 The factors of 81 are: 1, 3, 9, 27, 81
The GCF is 9.
The GCF of 18, 12 and 36 is 6. The GCF of 1812 and 36 is 12.