What is the Greatest Common Factor of 13557 and 13561?

Greatest common factor (GCF) of 13557 and 13561 is 1.

GCF(13557,13561) = 1

We will now calculate the prime factors of 13557 and 13561, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13557 and 13561.

How to find the GCF of 13557 and 13561?

We will first find the prime factorization of 13557 and 13561. After we will calculate the factors of 13557 and 13561 and find the biggest common factor number .

Step-1: Prime Factorization of 13557

Prime factors of 13557 are 3, 4519. Prime factorization of 13557 in exponential form is:

13557 = 3¹ × 4519¹

Step-2: Prime Factorization of 13561

Prime factors of 13561 are 71, 191. Prime factorization of 13561 in exponential form is:

13561 = 71¹ × 191¹

Step-3: Factors of 13557

List of positive integer factors of 13557 that divides 13557 without a remainder.

1, 3, 4519

Step-4: Factors of 13561

List of positive integer factors of 13561 that divides 13557 without a remainder.

1, 71, 191

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13557 and 13561. The biggest common factor number is the GCF number.
So the greatest common factor 13557 and 13561 is 1.

Also check out the Least Common Multiple of 13557 and 13561