What is the Greatest Common Factor of 72904 and 72920?

Greatest common factor (GCF) of 72904 and 72920 is 8.

GCF(72904,72920) = 8

We will now calculate the prime factors of 72904 and 72920, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72904 and 72920.

How to find the GCF of 72904 and 72920?

We will first find the prime factorization of 72904 and 72920. After we will calculate the factors of 72904 and 72920 and find the biggest common factor number .

Step-1: Prime Factorization of 72904

Prime factors of 72904 are 2, 13, 701. Prime factorization of 72904 in exponential form is:

72904 = 2³ × 13¹ × 701¹

Step-2: 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-3: Factors of 72904

List of positive integer factors of 72904 that divides 72904 without a remainder.

1, 2, 4, 8, 13, 26, 52, 104, 701, 1402, 2804, 5608, 9113, 18226, 36452

Step-4: Factors of 72920

List of positive integer factors of 72920 that divides 72904 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72904 and 72920. The biggest common factor number is the GCF number.
So the greatest common factor 72904 and 72920 is 8.

Also check out the Least Common Multiple of 72904 and 72920