What is the Greatest Common Factor of 12591 and 12603?

Greatest common factor (GCF) of 12591 and 12603 is 3.

GCF(12591,12603) = 3

We will now calculate the prime factors of 12591 and 12603, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12591 and 12603.

How to find the GCF of 12591 and 12603?

We will first find the prime factorization of 12591 and 12603. After we will calculate the factors of 12591 and 12603 and find the biggest common factor number .

Step-1: Prime Factorization of 12591

Prime factors of 12591 are 3, 1399. Prime factorization of 12591 in exponential form is:

12591 = 3² × 1399¹

Step-2: Prime Factorization of 12603

Prime factors of 12603 are 3, 4201. Prime factorization of 12603 in exponential form is:

12603 = 3¹ × 4201¹

Step-3: Factors of 12591

List of positive integer factors of 12591 that divides 12591 without a remainder.

1, 3, 9, 1399, 4197

Step-4: Factors of 12603

List of positive integer factors of 12603 that divides 12591 without a remainder.

1, 3, 4201

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12591 and 12603. The biggest common factor number is the GCF number.
So the greatest common factor 12591 and 12603 is 3.

Also check out the Least Common Multiple of 12591 and 12603