What is the Greatest Common Factor of 15661 and 15677?

Greatest common factor (GCF) of 15661 and 15677 is 1.

GCF(15661,15677) = 1

We will now calculate the prime factors of 15661 and 15677, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15661 and 15677.

How to find the GCF of 15661 and 15677?

We will first find the prime factorization of 15661 and 15677. After we will calculate the factors of 15661 and 15677 and find the biggest common factor number .

Step-1: Prime Factorization of 15661

Prime factors of 15661 are 15661. Prime factorization of 15661 in exponential form is:

15661 = 15661¹

Step-2: Prime Factorization of 15677

Prime factors of 15677 are 61, 257. Prime factorization of 15677 in exponential form is:

15677 = 61¹ × 257¹

Step-3: Factors of 15661

List of positive integer factors of 15661 that divides 15661 without a remainder.

Step-4: Factors of 15677

List of positive integer factors of 15677 that divides 15661 without a remainder.

1, 61, 257

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15661 and 15677. The biggest common factor number is the GCF number.
So the greatest common factor 15661 and 15677 is 1.

Also check out the Least Common Multiple of 15661 and 15677