What is the Greatest Common Factor of 65121 and 65128?

Greatest common factor (GCF) of 65121 and 65128 is 7.

GCF(65121,65128) = 7

We will now calculate the prime factors of 65121 and 65128, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 65121 and 65128.

How to find the GCF of 65121 and 65128?

We will first find the prime factorization of 65121 and 65128. After we will calculate the factors of 65121 and 65128 and find the biggest common factor number .

Step-1: Prime Factorization of 65121

Prime factors of 65121 are 3, 7, 443. Prime factorization of 65121 in exponential form is:

65121 = 3¹ × 7² × 443¹

Step-2: Prime Factorization of 65128

Prime factors of 65128 are 2, 7, 1163. Prime factorization of 65128 in exponential form is:

65128 = 2³ × 7¹ × 1163¹

Step-3: Factors of 65121

List of positive integer factors of 65121 that divides 65121 without a remainder.

1, 3, 7, 21, 49, 147, 443, 1329, 3101, 9303, 21707

Step-4: Factors of 65128

List of positive integer factors of 65128 that divides 65121 without a remainder.

1, 2, 4, 7, 8, 14, 28, 56, 1163, 2326, 4652, 8141, 9304, 16282, 32564

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 65121 and 65128. The biggest common factor number is the GCF number.
So the greatest common factor 65121 and 65128 is 7.

Also check out the Least Common Multiple of 65121 and 65128