What is the Greatest Common Factor of 12609 and 12621?

Greatest common factor (GCF) of 12609 and 12621 is 3.

GCF(12609,12621) = 3

We will now calculate the prime factors of 12609 and 12621, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12609 and 12621.

How to find the GCF of 12609 and 12621?

We will first find the prime factorization of 12609 and 12621. After we will calculate the factors of 12609 and 12621 and find the biggest common factor number .

Step-1: Prime Factorization of 12609

Prime factors of 12609 are 3, 467. Prime factorization of 12609 in exponential form is:

12609 = 3³ × 467¹

Step-2: Prime Factorization of 12621

Prime factors of 12621 are 3, 7, 601. Prime factorization of 12621 in exponential form is:

12621 = 3¹ × 7¹ × 601¹

Step-3: Factors of 12609

List of positive integer factors of 12609 that divides 12609 without a remainder.

1, 3, 9, 27, 467, 1401, 4203

Step-4: Factors of 12621

List of positive integer factors of 12621 that divides 12609 without a remainder.

1, 3, 7, 21, 601, 1803, 4207

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12609 and 12621. The biggest common factor number is the GCF number.
So the greatest common factor 12609 and 12621 is 3.

Also check out the Least Common Multiple of 12609 and 12621