What is the Greatest Common Factor of 11905 and 11909?

Greatest common factor (GCF) of 11905 and 11909 is 1.

GCF(11905,11909) = 1

We will now calculate the prime factors of 11905 and 11909, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11905 and 11909.

How to find the GCF of 11905 and 11909?

We will first find the prime factorization of 11905 and 11909. After we will calculate the factors of 11905 and 11909 and find the biggest common factor number .

Step-1: Prime Factorization of 11905

Prime factors of 11905 are 5, 2381. Prime factorization of 11905 in exponential form is:

11905 = 5¹ × 2381¹

Step-2: Prime Factorization of 11909

Prime factors of 11909 are 11909. Prime factorization of 11909 in exponential form is:

11909 = 11909¹

Step-3: Factors of 11905

List of positive integer factors of 11905 that divides 11905 without a remainder.

1, 5, 2381

Step-4: Factors of 11909

List of positive integer factors of 11909 that divides 11905 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11905 and 11909. The biggest common factor number is the GCF number.
So the greatest common factor 11905 and 11909 is 1.

Also check out the Least Common Multiple of 11905 and 11909