What is the Greatest Common Factor of 11857 and 11865?

Greatest common factor (GCF) of 11857 and 11865 is 1.

GCF(11857,11865) = 1

We will now calculate the prime factors of 11857 and 11865, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11857 and 11865.

How to find the GCF of 11857 and 11865?

We will first find the prime factorization of 11857 and 11865. After we will calculate the factors of 11857 and 11865 and find the biggest common factor number .

Step-1: Prime Factorization of 11857

Prime factors of 11857 are 71, 167. Prime factorization of 11857 in exponential form is:

11857 = 71¹ × 167¹

Step-2: Prime Factorization of 11865

Prime factors of 11865 are 3, 5, 7, 113. Prime factorization of 11865 in exponential form is:

11865 = 3¹ × 5¹ × 7¹ × 113¹

Step-3: Factors of 11857

List of positive integer factors of 11857 that divides 11857 without a remainder.

1, 71, 167

Step-4: Factors of 11865

List of positive integer factors of 11865 that divides 11857 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105, 113, 339, 565, 791, 1695, 2373, 3955

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11857 and 11865. The biggest common factor number is the GCF number.
So the greatest common factor 11857 and 11865 is 1.

Also check out the Least Common Multiple of 11857 and 11865