What is the Greatest Common Factor of 12771 and 12786?

Greatest common factor (GCF) of 12771 and 12786 is 3.

GCF(12771,12786) = 3

We will now calculate the prime factors of 12771 and 12786, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12771 and 12786.

How to find the GCF of 12771 and 12786?

We will first find the prime factorization of 12771 and 12786. After we will calculate the factors of 12771 and 12786 and find the biggest common factor number .

Step-1: Prime Factorization of 12771

Prime factors of 12771 are 3, 11, 43. Prime factorization of 12771 in exponential form is:

12771 = 3³ × 11¹ × 43¹

Step-2: Prime Factorization of 12786

Prime factors of 12786 are 2, 3, 2131. Prime factorization of 12786 in exponential form is:

12786 = 2¹ × 3¹ × 2131¹

Step-3: Factors of 12771

List of positive integer factors of 12771 that divides 12771 without a remainder.

1, 3, 9, 11, 27, 33, 43, 99, 129, 297, 387, 473, 1161, 1419, 4257

Step-4: Factors of 12786

List of positive integer factors of 12786 that divides 12771 without a remainder.

1, 2, 3, 6, 2131, 4262, 6393

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12771 and 12786. The biggest common factor number is the GCF number.
So the greatest common factor 12771 and 12786 is 3.

Also check out the Least Common Multiple of 12771 and 12786