What is the Greatest Common Factor of 72921 and 72928?

Greatest common factor (GCF) of 72921 and 72928 is 1.

GCF(72921,72928) = 1

We will now calculate the prime factors of 72921 and 72928, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72921 and 72928.

How to find the GCF of 72921 and 72928?

We will first find the prime factorization of 72921 and 72928. After we will calculate the factors of 72921 and 72928 and find the biggest common factor number .

Step-1: Prime Factorization of 72921

Prime factors of 72921 are 3, 109, 223. Prime factorization of 72921 in exponential form is:

72921 = 3¹ × 109¹ × 223¹

Step-2: Prime Factorization of 72928

Prime factors of 72928 are 2, 43, 53. Prime factorization of 72928 in exponential form is:

72928 = 2⁵ × 43¹ × 53¹

Step-3: Factors of 72921

List of positive integer factors of 72921 that divides 72921 without a remainder.

1, 3, 109, 223, 327, 669, 24307

Step-4: Factors of 72928

List of positive integer factors of 72928 that divides 72921 without a remainder.

1, 2, 4, 8, 16, 32, 43, 53, 86, 106, 172, 212, 344, 424, 688, 848, 1376, 1696, 2279, 4558, 9116, 18232, 36464

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72921 and 72928. The biggest common factor number is the GCF number.
So the greatest common factor 72921 and 72928 is 1.

Also check out the Least Common Multiple of 72921 and 72928