What is the Greatest Common Factor of 12781 and 12790?

Greatest common factor (GCF) of 12781 and 12790 is 1.

GCF(12781,12790) = 1

We will now calculate the prime factors of 12781 and 12790, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12781 and 12790.

How to find the GCF of 12781 and 12790?

We will first find the prime factorization of 12781 and 12790. After we will calculate the factors of 12781 and 12790 and find the biggest common factor number .

Step-1: Prime Factorization of 12781

Prime factors of 12781 are 12781. Prime factorization of 12781 in exponential form is:

12781 = 12781¹

Step-2: Prime Factorization of 12790

Prime factors of 12790 are 2, 5, 1279. Prime factorization of 12790 in exponential form is:

12790 = 2¹ × 5¹ × 1279¹

Step-3: Factors of 12781

List of positive integer factors of 12781 that divides 12781 without a remainder.

Step-4: Factors of 12790

List of positive integer factors of 12790 that divides 12781 without a remainder.

1, 2, 5, 10, 1279, 2558, 6395

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12781 and 12790. The biggest common factor number is the GCF number.
So the greatest common factor 12781 and 12790 is 1.

Also check out the Least Common Multiple of 12781 and 12790