What is the Greatest Common Factor of 939 and 957?

Greatest common factor (GCF) of 939 and 957 is 3.

GCF(939,957) = 3

We will now calculate the prime factors of 939 and 957, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 939 and 957.

How to find the GCF of 939 and 957?

We will first find the prime factorization of 939 and 957. After we will calculate the factors of 939 and 957 and find the biggest common factor number .

Step-1: Prime Factorization of 939

Prime factors of 939 are 3, 313. Prime factorization of 939 in exponential form is:

939 = 3¹ × 313¹

Step-2: Prime Factorization of 957

Prime factors of 957 are 3, 11, 29. Prime factorization of 957 in exponential form is:

957 = 3¹ × 11¹ × 29¹

Step-3: Factors of 939

List of positive integer factors of 939 that divides 939 without a remainder.

1, 3, 313

Step-4: Factors of 957

List of positive integer factors of 957 that divides 939 without a remainder.

1, 3, 11, 29, 33, 87, 319

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 939 and 957. The biggest common factor number is the GCF number.
So the greatest common factor 939 and 957 is 3.

Also check out the Least Common Multiple of 939 and 957