What is the Greatest Common Factor of 64572 and 64581?

Greatest common factor (GCF) of 64572 and 64581 is 3.

GCF(64572,64581) = 3

We will now calculate the prime factors of 64572 and 64581, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64572 and 64581.

How to find the GCF of 64572 and 64581?

We will first find the prime factorization of 64572 and 64581. After we will calculate the factors of 64572 and 64581 and find the biggest common factor number .

Step-1: Prime Factorization of 64572

Prime factors of 64572 are 2, 3, 5381. Prime factorization of 64572 in exponential form is:

64572 = 2² × 3¹ × 5381¹

Step-2: Prime Factorization of 64581

Prime factors of 64581 are 3, 11, 19, 103. Prime factorization of 64581 in exponential form is:

64581 = 3¹ × 11¹ × 19¹ × 103¹

Step-3: Factors of 64572

List of positive integer factors of 64572 that divides 64572 without a remainder.

1, 2, 3, 4, 6, 12, 5381, 10762, 16143, 21524, 32286

Step-4: Factors of 64581

List of positive integer factors of 64581 that divides 64572 without a remainder.

1, 3, 11, 19, 33, 57, 103, 209, 309, 627, 1133, 1957, 3399, 5871, 21527

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 64572 and 64581. The biggest common factor number is the GCF number.
So the greatest common factor 64572 and 64581 is 3.

Also check out the Least Common Multiple of 64572 and 64581