What is the Greatest Common Factor of 237 and 257?

Greatest common factor (GCF) of 237 and 257 is 1.

GCF(237,257) = 1

We will now calculate the prime factors of 237 and 257, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 237 and 257.

How to find the GCF of 237 and 257?

We will first find the prime factorization of 237 and 257. After we will calculate the factors of 237 and 257 and find the biggest common factor number .

Step-1: Prime Factorization of 237

Prime factors of 237 are 3, 79. Prime factorization of 237 in exponential form is:

237 = 3¹ × 79¹

Step-2: Prime Factorization of 257

Prime factors of 257 are 257. Prime factorization of 257 in exponential form is:

257 = 257¹

Step-3: Factors of 237

List of positive integer factors of 237 that divides 237 without a remainder.

1, 3, 79

Step-4: Factors of 257

List of positive integer factors of 257 that divides 237 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 237 and 257. The biggest common factor number is the GCF number.
So the greatest common factor 237 and 257 is 1.

Also check out the Least Common Multiple of 237 and 257