What is the Greatest Common Factor of 72615 and 72621?

Greatest common factor (GCF) of 72615 and 72621 is 3.

GCF(72615,72621) = 3

We will now calculate the prime factors of 72615 and 72621, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72615 and 72621.

How to find the GCF of 72615 and 72621?

We will first find the prime factorization of 72615 and 72621. After we will calculate the factors of 72615 and 72621 and find the biggest common factor number .

Step-1: Prime Factorization of 72615

Prime factors of 72615 are 3, 5, 47, 103. Prime factorization of 72615 in exponential form is:

72615 = 3¹ × 5¹ × 47¹ × 103¹

Step-2: Prime Factorization of 72621

Prime factors of 72621 are 3, 8069. Prime factorization of 72621 in exponential form is:

72621 = 3² × 8069¹

Step-3: Factors of 72615

List of positive integer factors of 72615 that divides 72615 without a remainder.

1, 3, 5, 15, 47, 103, 141, 235, 309, 515, 705, 1545, 4841, 14523, 24205

Step-4: Factors of 72621

List of positive integer factors of 72621 that divides 72615 without a remainder.

1, 3, 9, 8069, 24207

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72615 and 72621. The biggest common factor number is the GCF number.
So the greatest common factor 72615 and 72621 is 3.

Also check out the Least Common Multiple of 72615 and 72621