What is the Greatest Common Factor of 12685 and 12689?

Greatest common factor (GCF) of 12685 and 12689 is 1.

GCF(12685,12689) = 1

We will now calculate the prime factors of 12685 and 12689, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12685 and 12689.

How to find the GCF of 12685 and 12689?

We will first find the prime factorization of 12685 and 12689. After we will calculate the factors of 12685 and 12689 and find the biggest common factor number .

Step-1: Prime Factorization of 12685

Prime factors of 12685 are 5, 43, 59. Prime factorization of 12685 in exponential form is:

12685 = 5¹ × 43¹ × 59¹

Step-2: Prime Factorization of 12689

Prime factors of 12689 are 12689. Prime factorization of 12689 in exponential form is:

12689 = 12689¹

Step-3: Factors of 12685

List of positive integer factors of 12685 that divides 12685 without a remainder.

1, 5, 43, 59, 215, 295, 2537

Step-4: Factors of 12689

List of positive integer factors of 12689 that divides 12685 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12685 and 12689. The biggest common factor number is the GCF number.
So the greatest common factor 12685 and 12689 is 1.

Also check out the Least Common Multiple of 12685 and 12689