What is the Greatest Common Factor of 12709 and 12720?

Greatest common factor (GCF) of 12709 and 12720 is 1.

GCF(12709,12720) = 1

We will now calculate the prime factors of 12709 and 12720, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12709 and 12720.

How to find the GCF of 12709 and 12720?

We will first find the prime factorization of 12709 and 12720. After we will calculate the factors of 12709 and 12720 and find the biggest common factor number .

Step-1: Prime Factorization of 12709

Prime factors of 12709 are 71, 179. Prime factorization of 12709 in exponential form is:

12709 = 71¹ × 179¹

Step-2: Prime Factorization of 12720

Prime factors of 12720 are 2, 3, 5, 53. Prime factorization of 12720 in exponential form is:

12720 = 2⁴ × 3¹ × 5¹ × 53¹

Step-3: Factors of 12709

List of positive integer factors of 12709 that divides 12709 without a remainder.

1, 71, 179

Step-4: Factors of 12720

List of positive integer factors of 12720 that divides 12709 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1590, 2120, 2544, 3180, 4240, 6360

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12709 and 12720. The biggest common factor number is the GCF number.
So the greatest common factor 12709 and 12720 is 1.

Also check out the Least Common Multiple of 12709 and 12720