What is the Greatest Common Factor of 12870 and 12881?

Greatest common factor (GCF) of 12870 and 12881 is 11.

GCF(12870,12881) = 11

We will now calculate the prime factors of 12870 and 12881, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12870 and 12881.

How to find the GCF of 12870 and 12881?

We will first find the prime factorization of 12870 and 12881. After we will calculate the factors of 12870 and 12881 and find the biggest common factor number .

Step-1: Prime Factorization of 12870

Prime factors of 12870 are 2, 3, 5, 11, 13. Prime factorization of 12870 in exponential form is:

12870 = 2¹ × 3² × 5¹ × 11¹ × 13¹

Step-2: Prime Factorization of 12881

Prime factors of 12881 are 11, 1171. Prime factorization of 12881 in exponential form is:

12881 = 11¹ × 1171¹

Step-3: Factors of 12870

List of positive integer factors of 12870 that divides 12870 without a remainder.

1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 22, 26, 30, 33, 39, 45, 55, 65, 66, 78, 90, 99, 110, 117, 130, 143, 165, 195, 198, 234, 286, 330, 390, 429, 495, 585, 715, 858, 990, 1170, 1287, 1430, 2145, 2574, 4290, 6435

Step-4: Factors of 12881

List of positive integer factors of 12881 that divides 12870 without a remainder.

1, 11, 1171

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12870 and 12881. The biggest common factor number is the GCF number.
So the greatest common factor 12870 and 12881 is 11.

Also check out the Least Common Multiple of 12870 and 12881