What is the Greatest Common Factor of 11957 and 11972?

Greatest common factor (GCF) of 11957 and 11972 is 1.

GCF(11957,11972) = 1

We will now calculate the prime factors of 11957 and 11972, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11957 and 11972.

How to find the GCF of 11957 and 11972?

We will first find the prime factorization of 11957 and 11972. After we will calculate the factors of 11957 and 11972 and find the biggest common factor number .

Step-1: Prime Factorization of 11957

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

11957 = 11¹ × 1087¹

Step-2: Prime Factorization of 11972

Prime factors of 11972 are 2, 41, 73. Prime factorization of 11972 in exponential form is:

11972 = 2² × 41¹ × 73¹

Step-3: Factors of 11957

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

1, 11, 1087

Step-4: Factors of 11972

List of positive integer factors of 11972 that divides 11957 without a remainder.

1, 2, 4, 41, 73, 82, 146, 164, 292, 2993, 5986

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11957 and 11972. The biggest common factor number is the GCF number.
So the greatest common factor 11957 and 11972 is 1.

Also check out the Least Common Multiple of 11957 and 11972