What is the Greatest Common Factor of 956 and 972?

Greatest common factor (GCF) of 956 and 972 is 4.

GCF(956,972) = 4

We will now calculate the prime factors of 956 and 972, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 956 and 972.

How to find the GCF of 956 and 972?

We will first find the prime factorization of 956 and 972. After we will calculate the factors of 956 and 972 and find the biggest common factor number .

Step-1: Prime Factorization of 956

Prime factors of 956 are 2, 239. Prime factorization of 956 in exponential form is:

956 = 2² × 239¹

Step-2: Prime Factorization of 972

Prime factors of 972 are 2, 3. Prime factorization of 972 in exponential form is:

972 = 2² × 3⁵

Step-3: Factors of 956

List of positive integer factors of 956 that divides 956 without a remainder.

1, 2, 4, 239, 478

Step-4: Factors of 972

List of positive integer factors of 972 that divides 956 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 956 and 972. The biggest common factor number is the GCF number.
So the greatest common factor 956 and 972 is 4.

Also check out the Least Common Multiple of 956 and 972