What is the Greatest Common Factor of 12969 and 12981?

Greatest common factor (GCF) of 12969 and 12981 is 3.

GCF(12969,12981) = 3

We will now calculate the prime factors of 12969 and 12981, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12969 and 12981.

How to find the GCF of 12969 and 12981?

We will first find the prime factorization of 12969 and 12981. After we will calculate the factors of 12969 and 12981 and find the biggest common factor number .

Step-1: Prime Factorization of 12969

Prime factors of 12969 are 3, 11, 131. Prime factorization of 12969 in exponential form is:

12969 = 3² × 11¹ × 131¹

Step-2: Prime Factorization of 12981

Prime factors of 12981 are 3, 4327. Prime factorization of 12981 in exponential form is:

12981 = 3¹ × 4327¹

Step-3: Factors of 12969

List of positive integer factors of 12969 that divides 12969 without a remainder.

1, 3, 9, 11, 33, 99, 131, 393, 1179, 1441, 4323

Step-4: Factors of 12981

List of positive integer factors of 12981 that divides 12969 without a remainder.

1, 3, 4327

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12969 and 12981. The biggest common factor number is the GCF number.
So the greatest common factor 12969 and 12981 is 3.

Also check out the Least Common Multiple of 12969 and 12981