What is the Greatest Common Factor of 11855 and 11861?

Greatest common factor (GCF) of 11855 and 11861 is 1.

GCF(11855,11861) = 1

We will now calculate the prime factors of 11855 and 11861, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11855 and 11861.

How to find the GCF of 11855 and 11861?

We will first find the prime factorization of 11855 and 11861. After we will calculate the factors of 11855 and 11861 and find the biggest common factor number .

Step-1: Prime Factorization of 11855

Prime factors of 11855 are 5, 2371. Prime factorization of 11855 in exponential form is:

11855 = 5¹ × 2371¹

Step-2: Prime Factorization of 11861

Prime factors of 11861 are 29, 409. Prime factorization of 11861 in exponential form is:

11861 = 29¹ × 409¹

Step-3: Factors of 11855

List of positive integer factors of 11855 that divides 11855 without a remainder.

1, 5, 2371

Step-4: Factors of 11861

List of positive integer factors of 11861 that divides 11855 without a remainder.

1, 29, 409

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11855 and 11861. The biggest common factor number is the GCF number.
So the greatest common factor 11855 and 11861 is 1.

Also check out the Least Common Multiple of 11855 and 11861