What is the Greatest Common Factor of 28719 and 28731?

Greatest common factor (GCF) of 28719 and 28731 is 3.

GCF(28719,28731) = 3

We will now calculate the prime factors of 28719 and 28731, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28719 and 28731.

How to find the GCF of 28719 and 28731?

We will first find the prime factorization of 28719 and 28731. After we will calculate the factors of 28719 and 28731 and find the biggest common factor number .

Step-1: Prime Factorization of 28719

Prime factors of 28719 are 3, 3191. Prime factorization of 28719 in exponential form is:

28719 = 3² × 3191¹

Step-2: Prime Factorization of 28731

Prime factors of 28731 are 3, 61, 157. Prime factorization of 28731 in exponential form is:

28731 = 3¹ × 61¹ × 157¹

Step-3: Factors of 28719

List of positive integer factors of 28719 that divides 28719 without a remainder.

1, 3, 9, 3191, 9573

Step-4: Factors of 28731

List of positive integer factors of 28731 that divides 28719 without a remainder.

1, 3, 61, 157, 183, 471, 9577

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28719 and 28731. The biggest common factor number is the GCF number.
So the greatest common factor 28719 and 28731 is 3.

Also check out the Least Common Multiple of 28719 and 28731