What is the Greatest Common Factor of 25991 and 25997?

Greatest common factor (GCF) of 25991 and 25997 is 1.

GCF(25991,25997) = 1

We will now calculate the prime factors of 25991 and 25997, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25991 and 25997.

How to find the GCF of 25991 and 25997?

We will first find the prime factorization of 25991 and 25997. After we will calculate the factors of 25991 and 25997 and find the biggest common factor number .

Step-1: Prime Factorization of 25991

Prime factors of 25991 are 7, 47, 79. Prime factorization of 25991 in exponential form is:

25991 = 7¹ × 47¹ × 79¹

Step-2: Prime Factorization of 25997

Prime factors of 25997 are 25997. Prime factorization of 25997 in exponential form is:

25997 = 25997¹

Step-3: Factors of 25991

List of positive integer factors of 25991 that divides 25991 without a remainder.

1, 7, 47, 79, 329, 553, 3713

Step-4: Factors of 25997

List of positive integer factors of 25997 that divides 25991 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25991 and 25997. The biggest common factor number is the GCF number.
So the greatest common factor 25991 and 25997 is 1.

Also check out the Least Common Multiple of 25991 and 25997