What is the Greatest Common Factor of 28947 and 28959?

Greatest common factor (GCF) of 28947 and 28959 is 3.

GCF(28947,28959) = 3

We will now calculate the prime factors of 28947 and 28959, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28947 and 28959.

How to find the GCF of 28947 and 28959?

We will first find the prime factorization of 28947 and 28959. After we will calculate the factors of 28947 and 28959 and find the biggest common factor number .

Step-1: Prime Factorization of 28947

Prime factors of 28947 are 3, 9649. Prime factorization of 28947 in exponential form is:

28947 = 3¹ × 9649¹

Step-2: Prime Factorization of 28959

Prime factors of 28959 are 3, 7, 197. Prime factorization of 28959 in exponential form is:

28959 = 3¹ × 7² × 197¹

Step-3: Factors of 28947

List of positive integer factors of 28947 that divides 28947 without a remainder.

1, 3, 9649

Step-4: Factors of 28959

List of positive integer factors of 28959 that divides 28947 without a remainder.

1, 3, 7, 21, 49, 147, 197, 591, 1379, 4137, 9653

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28947 and 28959. The biggest common factor number is the GCF number.
So the greatest common factor 28947 and 28959 is 3.

Also check out the Least Common Multiple of 28947 and 28959