What is the Greatest Common Factor of 1337 and 1357?

Greatest common factor (GCF) of 1337 and 1357 is 1.

GCF(1337,1357) = 1

We will now calculate the prime factors of 1337 and 1357, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1337 and 1357.

How to find the GCF of 1337 and 1357?

We will first find the prime factorization of 1337 and 1357. After we will calculate the factors of 1337 and 1357 and find the biggest common factor number .

Step-1: Prime Factorization of 1337

Prime factors of 1337 are 7, 191. Prime factorization of 1337 in exponential form is:

1337 = 7¹ × 191¹

Step-2: Prime Factorization of 1357

Prime factors of 1357 are 23, 59. Prime factorization of 1357 in exponential form is:

1357 = 23¹ × 59¹

Step-3: Factors of 1337

List of positive integer factors of 1337 that divides 1337 without a remainder.

1, 7, 191

Step-4: Factors of 1357

List of positive integer factors of 1357 that divides 1337 without a remainder.

1, 23, 59

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1337 and 1357. The biggest common factor number is the GCF number.
So the greatest common factor 1337 and 1357 is 1.

Also check out the Least Common Multiple of 1337 and 1357