What is the Greatest Common Factor of 28715 and 28735?

Greatest common factor (GCF) of 28715 and 28735 is 5.

GCF(28715,28735) = 5

We will now calculate the prime factors of 28715 and 28735, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28715 and 28735.

How to find the GCF of 28715 and 28735?

We will first find the prime factorization of 28715 and 28735. After we will calculate the factors of 28715 and 28735 and find the biggest common factor number .

Step-1: Prime Factorization of 28715

Prime factors of 28715 are 5, 5743. Prime factorization of 28715 in exponential form is:

28715 = 5¹ × 5743¹

Step-2: Prime Factorization of 28735

Prime factors of 28735 are 5, 7, 821. Prime factorization of 28735 in exponential form is:

28735 = 5¹ × 7¹ × 821¹

Step-3: Factors of 28715

List of positive integer factors of 28715 that divides 28715 without a remainder.

1, 5, 5743

Step-4: Factors of 28735

List of positive integer factors of 28735 that divides 28715 without a remainder.

1, 5, 7, 35, 821, 4105, 5747

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28715 and 28735. The biggest common factor number is the GCF number.
So the greatest common factor 28715 and 28735 is 5.

Also check out the Least Common Multiple of 28715 and 28735