What is the Greatest Common Factor of 1909 and 1916?

Greatest common factor (GCF) of 1909 and 1916 is 1.

GCF(1909,1916) = 1

We will now calculate the prime factors of 1909 and 1916, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1909 and 1916.

How to find the GCF of 1909 and 1916?

We will first find the prime factorization of 1909 and 1916. After we will calculate the factors of 1909 and 1916 and find the biggest common factor number .

Step-1: Prime Factorization of 1909

Prime factors of 1909 are 23, 83. Prime factorization of 1909 in exponential form is:

1909 = 23¹ × 83¹

Step-2: Prime Factorization of 1916

Prime factors of 1916 are 2, 479. Prime factorization of 1916 in exponential form is:

1916 = 2² × 479¹

Step-3: Factors of 1909

List of positive integer factors of 1909 that divides 1909 without a remainder.

1, 23, 83

Step-4: Factors of 1916

List of positive integer factors of 1916 that divides 1909 without a remainder.

1, 2, 4, 479, 958

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1909 and 1916. The biggest common factor number is the GCF number.
So the greatest common factor 1909 and 1916 is 1.

Also check out the Least Common Multiple of 1909 and 1916