What is the Greatest Common Factor of 28491 and 28503?

Greatest common factor (GCF) of 28491 and 28503 is 3.

GCF(28491,28503) = 3

We will now calculate the prime factors of 28491 and 28503, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28491 and 28503.

How to find the GCF of 28491 and 28503?

We will first find the prime factorization of 28491 and 28503. After we will calculate the factors of 28491 and 28503 and find the biggest common factor number .

Step-1: Prime Factorization of 28491

Prime factors of 28491 are 3, 9497. Prime factorization of 28491 in exponential form is:

28491 = 3¹ × 9497¹

Step-2: Prime Factorization of 28503

Prime factors of 28503 are 3, 3167. Prime factorization of 28503 in exponential form is:

28503 = 3² × 3167¹

Step-3: Factors of 28491

List of positive integer factors of 28491 that divides 28491 without a remainder.

1, 3, 9497

Step-4: Factors of 28503

List of positive integer factors of 28503 that divides 28491 without a remainder.

1, 3, 9, 3167, 9501

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28491 and 28503. The biggest common factor number is the GCF number.
So the greatest common factor 28491 and 28503 is 3.

Also check out the Least Common Multiple of 28491 and 28503