What is the Greatest Common Factor of 26715 and 26721?

Greatest common factor (GCF) of 26715 and 26721 is 3.

GCF(26715,26721) = 3

We will now calculate the prime factors of 26715 and 26721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 26715 and 26721.

How to find the GCF of 26715 and 26721?

We will first find the prime factorization of 26715 and 26721. After we will calculate the factors of 26715 and 26721 and find the biggest common factor number .

Step-1: Prime Factorization of 26715

Prime factors of 26715 are 3, 5, 13, 137. Prime factorization of 26715 in exponential form is:

26715 = 3¹ × 5¹ × 13¹ × 137¹

Step-2: Prime Factorization of 26721

Prime factors of 26721 are 3, 2969. Prime factorization of 26721 in exponential form is:

26721 = 3² × 2969¹

Step-3: Factors of 26715

List of positive integer factors of 26715 that divides 26715 without a remainder.

1, 3, 5, 13, 15, 39, 65, 137, 195, 411, 685, 1781, 2055, 5343, 8905

Step-4: Factors of 26721

List of positive integer factors of 26721 that divides 26715 without a remainder.

1, 3, 9, 2969, 8907

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 26715 and 26721. The biggest common factor number is the GCF number.
So the greatest common factor 26715 and 26721 is 3.

Also check out the Least Common Multiple of 26715 and 26721