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.
The GCF is 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.