What is the Greatest Common Factor of 28563 and 28578?

Greatest common factor (GCF) of 28563 and 28578 is 3.

GCF(28563,28578) = 3

We will now calculate the prime factors of 28563 and 28578, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28563 and 28578.

How to find the GCF of 28563 and 28578?

We will first find the prime factorization of 28563 and 28578. After we will calculate the factors of 28563 and 28578 and find the biggest common factor number .

Step-1: Prime Factorization of 28563

Prime factors of 28563 are 3, 9521. Prime factorization of 28563 in exponential form is:

28563 = 3¹ × 9521¹

Step-2: Prime Factorization of 28578

Prime factors of 28578 are 2, 3, 11, 433. Prime factorization of 28578 in exponential form is:

28578 = 2¹ × 3¹ × 11¹ × 433¹

Step-3: Factors of 28563

List of positive integer factors of 28563 that divides 28563 without a remainder.

1, 3, 9521

Step-4: Factors of 28578

List of positive integer factors of 28578 that divides 28563 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66, 433, 866, 1299, 2598, 4763, 9526, 14289

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28563 and 28578. The biggest common factor number is the GCF number.
So the greatest common factor 28563 and 28578 is 3.

Also check out the Least Common Multiple of 28563 and 28578