What is the Greatest Common Factor of 28515 and 28531?

Greatest common factor (GCF) of 28515 and 28531 is 1.

GCF(28515,28531) = 1

We will now calculate the prime factors of 28515 and 28531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28515 and 28531.

How to find the GCF of 28515 and 28531?

We will first find the prime factorization of 28515 and 28531. After we will calculate the factors of 28515 and 28531 and find the biggest common factor number .

Step-1: Prime Factorization of 28515

Prime factors of 28515 are 3, 5, 1901. Prime factorization of 28515 in exponential form is:

28515 = 3¹ × 5¹ × 1901¹

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 28515

List of positive integer factors of 28515 that divides 28515 without a remainder.

1, 3, 5, 15, 1901, 5703, 9505

Step-4: Factors of 28531

List of positive integer factors of 28531 that divides 28515 without a remainder.

1, 103, 277

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28515 and 28531. The biggest common factor number is the GCF number.
So the greatest common factor 28515 and 28531 is 1.

Also check out the Least Common Multiple of 28515 and 28531