What is the Greatest Common Factor of 72021 and 72039?

Greatest common factor (GCF) of 72021 and 72039 is 3.

GCF(72021,72039) = 3

We will now calculate the prime factors of 72021 and 72039, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72021 and 72039.

How to find the GCF of 72021 and 72039?

We will first find the prime factorization of 72021 and 72039. After we will calculate the factors of 72021 and 72039 and find the biggest common factor number .

Step-1: Prime Factorization of 72021

Prime factors of 72021 are 3, 24007. Prime factorization of 72021 in exponential form is:

72021 = 3¹ × 24007¹

Step-2: Prime Factorization of 72039

Prime factors of 72039 are 3, 11, 37, 59. Prime factorization of 72039 in exponential form is:

72039 = 3¹ × 11¹ × 37¹ × 59¹

Step-3: Factors of 72021

List of positive integer factors of 72021 that divides 72021 without a remainder.

1, 3, 24007

Step-4: Factors of 72039

List of positive integer factors of 72039 that divides 72021 without a remainder.

1, 3, 11, 33, 37, 59, 111, 177, 407, 649, 1221, 1947, 2183, 6549, 24013

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72021 and 72039. The biggest common factor number is the GCF number.
So the greatest common factor 72021 and 72039 is 3.

Also check out the Least Common Multiple of 72021 and 72039