It is: 4
It is: 1
It is: 69
You need at least two numbers to find a GCF. The prime factorization of 207 is 3 x 3 x 23.
41 is a prime number which makes 41 the gcf of 41 and 82
It is: 4
At least two or more numbers are needed to find their GCF
That is not what prime factorization is for.
53 is already prime. 2 x 43 = 86 No common prime factors; the GCF is 1.
Prime factorization of 32 = 2x2x2x2x2 Prime factorization of 90 = 2x3x3x5 Prime factorization of 30 = 2x3x5 What is common in the prime factorization of the numbers? Only 2 is common, so GCF is 2.
Whatever you use, you need at least two numbers to find a GCF.
The GCF of 52 and 68 is 4