What is the Greatest Common Factor of 15957 and 15977?

Greatest common factor (GCF) of 15957 and 15977 is 1.

GCF(15957,15977) = 1

We will now calculate the prime factors of 15957 and 15977, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15957 and 15977.

How to find the GCF of 15957 and 15977?

We will first find the prime factorization of 15957 and 15977. After we will calculate the factors of 15957 and 15977 and find the biggest common factor number .

Step-1: Prime Factorization of 15957

Prime factors of 15957 are 3, 197. Prime factorization of 15957 in exponential form is:

15957 = 3⁴ × 197¹

Step-2: Prime Factorization of 15977

Prime factors of 15977 are 13, 1229. Prime factorization of 15977 in exponential form is:

15977 = 13¹ × 1229¹

Step-3: Factors of 15957

List of positive integer factors of 15957 that divides 15957 without a remainder.

1, 3, 9, 27, 81, 197, 591, 1773, 5319

Step-4: Factors of 15977

List of positive integer factors of 15977 that divides 15957 without a remainder.

1, 13, 1229

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15957 and 15977. The biggest common factor number is the GCF number.
So the greatest common factor 15957 and 15977 is 1.

Also check out the Least Common Multiple of 15957 and 15977