What is the Greatest Common Factor of 2715 and 2721?

Greatest common factor (GCF) of 2715 and 2721 is 3.

GCF(2715,2721) = 3

We will now calculate the prime factors of 2715 and 2721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 2715 and 2721.

How to find the GCF of 2715 and 2721?

We will first find the prime factorization of 2715 and 2721. After we will calculate the factors of 2715 and 2721 and find the biggest common factor number .

Step-1: Prime Factorization of 2715

Prime factors of 2715 are 3, 5, 181. Prime factorization of 2715 in exponential form is:

2715 = 3¹ × 5¹ × 181¹

Step-2: Prime Factorization of 2721

Prime factors of 2721 are 3, 907. Prime factorization of 2721 in exponential form is:

2721 = 3¹ × 907¹

Step-3: Factors of 2715

List of positive integer factors of 2715 that divides 2715 without a remainder.

1, 3, 5, 15, 181, 543, 905

Step-4: Factors of 2721

List of positive integer factors of 2721 that divides 2715 without a remainder.

1, 3, 907

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 2715 and 2721. The biggest common factor number is the GCF number.
So the greatest common factor 2715 and 2721 is 3.

Also check out the Least Common Multiple of 2715 and 2721