What is the Greatest Common Factor of 28251 and 28269?

Greatest common factor (GCF) of 28251 and 28269 is 9.

GCF(28251,28269) = 9

We will now calculate the prime factors of 28251 and 28269, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28251 and 28269.

How to find the GCF of 28251 and 28269?

We will first find the prime factorization of 28251 and 28269. After we will calculate the factors of 28251 and 28269 and find the biggest common factor number .

Step-1: Prime Factorization of 28251

Prime factors of 28251 are 3, 43, 73. Prime factorization of 28251 in exponential form is:

28251 = 3² × 43¹ × 73¹

Step-2: Prime Factorization of 28269

Prime factors of 28269 are 3, 349. Prime factorization of 28269 in exponential form is:

28269 = 3⁴ × 349¹

Step-3: Factors of 28251

List of positive integer factors of 28251 that divides 28251 without a remainder.

1, 3, 9, 43, 73, 129, 219, 387, 657, 3139, 9417

Step-4: Factors of 28269

List of positive integer factors of 28269 that divides 28251 without a remainder.

1, 3, 9, 27, 81, 349, 1047, 3141, 9423

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28251 and 28269. The biggest common factor number is the GCF number.
So the greatest common factor 28251 and 28269 is 9.

Also check out the Least Common Multiple of 28251 and 28269