What is the Greatest Common Factor of 15681 and 15689?

Greatest common factor (GCF) of 15681 and 15689 is 1.

GCF(15681,15689) = 1

We will now calculate the prime factors of 15681 and 15689, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15681 and 15689.

How to find the GCF of 15681 and 15689?

We will first find the prime factorization of 15681 and 15689. After we will calculate the factors of 15681 and 15689 and find the biggest common factor number .

Step-1: Prime Factorization of 15681

Prime factors of 15681 are 3, 5227. Prime factorization of 15681 in exponential form is:

15681 = 3¹ × 5227¹

Step-2: Prime Factorization of 15689

Prime factors of 15689 are 29, 541. Prime factorization of 15689 in exponential form is:

15689 = 29¹ × 541¹

Step-3: Factors of 15681

List of positive integer factors of 15681 that divides 15681 without a remainder.

1, 3, 5227

Step-4: Factors of 15689

List of positive integer factors of 15689 that divides 15681 without a remainder.

1, 29, 541

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15681 and 15689. The biggest common factor number is the GCF number.
So the greatest common factor 15681 and 15689 is 1.

Also check out the Least Common Multiple of 15681 and 15689