What is the Greatest Common Factor of 13685 and 13691?

Greatest common factor (GCF) of 13685 and 13691 is 1.

GCF(13685,13691) = 1

We will now calculate the prime factors of 13685 and 13691, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13685 and 13691.

How to find the GCF of 13685 and 13691?

We will first find the prime factorization of 13685 and 13691. After we will calculate the factors of 13685 and 13691 and find the biggest common factor number .

Step-1: Prime Factorization of 13685

Prime factors of 13685 are 5, 7, 17, 23. Prime factorization of 13685 in exponential form is:

13685 = 5¹ × 7¹ × 17¹ × 23¹

Step-2: Prime Factorization of 13691

Prime factors of 13691 are 13691. Prime factorization of 13691 in exponential form is:

13691 = 13691¹

Step-3: Factors of 13685

List of positive integer factors of 13685 that divides 13685 without a remainder.

1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1955, 2737

Step-4: Factors of 13691

List of positive integer factors of 13691 that divides 13685 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13685 and 13691. The biggest common factor number is the GCF number.
So the greatest common factor 13685 and 13691 is 1.

Also check out the Least Common Multiple of 13685 and 13691