What is the Greatest Common Factor of 12717 and 12721?

Greatest common factor (GCF) of 12717 and 12721 is 1.

GCF(12717,12721) = 1

We will now calculate the prime factors of 12717 and 12721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12717 and 12721.

How to find the GCF of 12717 and 12721?

We will first find the prime factorization of 12717 and 12721. After we will calculate the factors of 12717 and 12721 and find the biggest common factor number .

Step-1: Prime Factorization of 12717

Prime factors of 12717 are 3, 157. Prime factorization of 12717 in exponential form is:

12717 = 3⁴ × 157¹

Step-2: Prime Factorization of 12721

Prime factors of 12721 are 12721. Prime factorization of 12721 in exponential form is:

12721 = 12721¹

Step-3: Factors of 12717

List of positive integer factors of 12717 that divides 12717 without a remainder.

1, 3, 9, 27, 81, 157, 471, 1413, 4239

Step-4: Factors of 12721

List of positive integer factors of 12721 that divides 12717 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12717 and 12721. The biggest common factor number is the GCF number.
So the greatest common factor 12717 and 12721 is 1.

Also check out the Least Common Multiple of 12717 and 12721