What is the Greatest Common Factor of 11915 and 11921?

Greatest common factor (GCF) of 11915 and 11921 is 1.

GCF(11915,11921) = 1

We will now calculate the prime factors of 11915 and 11921, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11915 and 11921.

How to find the GCF of 11915 and 11921?

We will first find the prime factorization of 11915 and 11921. After we will calculate the factors of 11915 and 11921 and find the biggest common factor number .

Step-1: Prime Factorization of 11915

Prime factors of 11915 are 5, 2383. Prime factorization of 11915 in exponential form is:

11915 = 5¹ × 2383¹

Step-2: Prime Factorization of 11921

Prime factors of 11921 are 7, 13, 131. Prime factorization of 11921 in exponential form is:

11921 = 7¹ × 13¹ × 131¹

Step-3: Factors of 11915

List of positive integer factors of 11915 that divides 11915 without a remainder.

1, 5, 2383

Step-4: Factors of 11921

List of positive integer factors of 11921 that divides 11915 without a remainder.

1, 7, 13, 91, 131, 917, 1703

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11915 and 11921. The biggest common factor number is the GCF number.
So the greatest common factor 11915 and 11921 is 1.

Also check out the Least Common Multiple of 11915 and 11921