What is the Greatest Common Factor of 11947 and 11957?

Greatest common factor (GCF) of 11947 and 11957 is 1.

GCF(11947,11957) = 1

We will now calculate the prime factors of 11947 and 11957, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11947 and 11957.

How to find the GCF of 11947 and 11957?

We will first find the prime factorization of 11947 and 11957. After we will calculate the factors of 11947 and 11957 and find the biggest common factor number .

Step-1: Prime Factorization of 11947

Prime factors of 11947 are 13, 919. Prime factorization of 11947 in exponential form is:

11947 = 13¹ × 919¹

Step-2: Prime Factorization of 11957

Prime factors of 11957 are 11, 1087. Prime factorization of 11957 in exponential form is:

11957 = 11¹ × 1087¹

Step-3: Factors of 11947

List of positive integer factors of 11947 that divides 11947 without a remainder.

1, 13, 919

Step-4: Factors of 11957

List of positive integer factors of 11957 that divides 11947 without a remainder.

1, 11, 1087

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11947 and 11957. The biggest common factor number is the GCF number.
So the greatest common factor 11947 and 11957 is 1.

Also check out the Least Common Multiple of 11947 and 11957