What is the Greatest Common Factor of 6309 and 6321?

Greatest common factor (GCF) of 6309 and 6321 is 3.

GCF(6309,6321) = 3

We will now calculate the prime factors of 6309 and 6321, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6309 and 6321.

How to find the GCF of 6309 and 6321?

We will first find the prime factorization of 6309 and 6321. After we will calculate the factors of 6309 and 6321 and find the biggest common factor number .

Step-1: Prime Factorization of 6309

Prime factors of 6309 are 3, 701. Prime factorization of 6309 in exponential form is:

6309 = 3² × 701¹

Step-2: Prime Factorization of 6321

Prime factors of 6321 are 3, 7, 43. Prime factorization of 6321 in exponential form is:

6321 = 3¹ × 7² × 43¹

Step-3: Factors of 6309

List of positive integer factors of 6309 that divides 6309 without a remainder.

1, 3, 9, 701, 2103

Step-4: Factors of 6321

List of positive integer factors of 6321 that divides 6309 without a remainder.

1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6309 and 6321. The biggest common factor number is the GCF number.
So the greatest common factor 6309 and 6321 is 3.

Also check out the Least Common Multiple of 6309 and 6321