What is the Greatest Common Factor of 28089 and 28107?

Greatest common factor (GCF) of 28089 and 28107 is 9.

GCF(28089,28107) = 9

We will now calculate the prime factors of 28089 and 28107, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28089 and 28107.

How to find the GCF of 28089 and 28107?

We will first find the prime factorization of 28089 and 28107. After we will calculate the factors of 28089 and 28107 and find the biggest common factor number .

Step-1: Prime Factorization of 28089

Prime factors of 28089 are 3, 3121. Prime factorization of 28089 in exponential form is:

28089 = 3² × 3121¹

Step-2: Prime Factorization of 28107

Prime factors of 28107 are 3, 347. Prime factorization of 28107 in exponential form is:

28107 = 3⁴ × 347¹

Step-3: Factors of 28089

List of positive integer factors of 28089 that divides 28089 without a remainder.

1, 3, 9, 3121, 9363

Step-4: Factors of 28107

List of positive integer factors of 28107 that divides 28089 without a remainder.

1, 3, 9, 27, 81, 347, 1041, 3123, 9369

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28089 and 28107. The biggest common factor number is the GCF number.
So the greatest common factor 28089 and 28107 is 9.

Also check out the Least Common Multiple of 28089 and 28107