What is the Greatest Common Factor of 28521 and 28531?

Greatest common factor (GCF) of 28521 and 28531 is 1.

GCF(28521,28531) = 1

We will now calculate the prime factors of 28521 and 28531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28521 and 28531.

How to find the GCF of 28521 and 28531?

We will first find the prime factorization of 28521 and 28531. After we will calculate the factors of 28521 and 28531 and find the biggest common factor number .

Step-1: Prime Factorization of 28521

Prime factors of 28521 are 3, 3169. Prime factorization of 28521 in exponential form is:

28521 = 3² × 3169¹

Step-2: Prime Factorization of 28531

Prime factors of 28531 are 103, 277. Prime factorization of 28531 in exponential form is:

28531 = 103¹ × 277¹

Step-3: Factors of 28521

List of positive integer factors of 28521 that divides 28521 without a remainder.

1, 3, 9, 3169, 9507

Step-4: Factors of 28531

List of positive integer factors of 28531 that divides 28521 without a remainder.

1, 103, 277

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28521 and 28531. The biggest common factor number is the GCF number.
So the greatest common factor 28521 and 28531 is 1.

Also check out the Least Common Multiple of 28521 and 28531