What is the Greatest Common Factor of 72920 and 72938?

Greatest common factor (GCF) of 72920 and 72938 is 2.

GCF(72920,72938) = 2

We will now calculate the prime factors of 72920 and 72938, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72920 and 72938.

How to find the GCF of 72920 and 72938?

We will first find the prime factorization of 72920 and 72938. After we will calculate the factors of 72920 and 72938 and find the biggest common factor number .

Step-1: Prime Factorization of 72920

Prime factors of 72920 are 2, 5, 1823. Prime factorization of 72920 in exponential form is:

72920 = 2³ × 5¹ × 1823¹

Step-2: Prime Factorization of 72938

Prime factors of 72938 are 2, 36469. Prime factorization of 72938 in exponential form is:

72938 = 2¹ × 36469¹

Step-3: Factors of 72920

List of positive integer factors of 72920 that divides 72920 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1823, 3646, 7292, 9115, 14584, 18230, 36460

Step-4: Factors of 72938

List of positive integer factors of 72938 that divides 72920 without a remainder.

1, 2, 36469

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72920 and 72938. The biggest common factor number is the GCF number.
So the greatest common factor 72920 and 72938 is 2.

Also check out the Least Common Multiple of 72920 and 72938