What is the Greatest Common Factor of 12789 and 12799?

Greatest common factor (GCF) of 12789 and 12799 is 1.

GCF(12789,12799) = 1

We will now calculate the prime factors of 12789 and 12799, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12789 and 12799.

How to find the GCF of 12789 and 12799?

We will first find the prime factorization of 12789 and 12799. After we will calculate the factors of 12789 and 12799 and find the biggest common factor number .

Step-1: Prime Factorization of 12789

Prime factors of 12789 are 3, 7, 29. Prime factorization of 12789 in exponential form is:

12789 = 3² × 7² × 29¹

Step-2: Prime Factorization of 12799

Prime factors of 12799 are 12799. Prime factorization of 12799 in exponential form is:

12799 = 12799¹

Step-3: Factors of 12789

List of positive integer factors of 12789 that divides 12789 without a remainder.

1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1827, 4263

Step-4: Factors of 12799

List of positive integer factors of 12799 that divides 12789 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12789 and 12799. The biggest common factor number is the GCF number.
So the greatest common factor 12789 and 12799 is 1.

Also check out the Least Common Multiple of 12789 and 12799