What is the Greatest Common Factor of 1911 and 1923?

Greatest common factor (GCF) of 1911 and 1923 is 3.

GCF(1911,1923) = 3

We will now calculate the prime factors of 1911 and 1923, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1911 and 1923.

How to find the GCF of 1911 and 1923?

We will first find the prime factorization of 1911 and 1923. After we will calculate the factors of 1911 and 1923 and find the biggest common factor number .

Step-1: Prime Factorization of 1911

Prime factors of 1911 are 3, 7, 13. Prime factorization of 1911 in exponential form is:

1911 = 3¹ × 7² × 13¹

Step-2: Prime Factorization of 1923

Prime factors of 1923 are 3, 641. Prime factorization of 1923 in exponential form is:

1923 = 3¹ × 641¹

Step-3: Factors of 1911

List of positive integer factors of 1911 that divides 1911 without a remainder.

1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637

Step-4: Factors of 1923

List of positive integer factors of 1923 that divides 1911 without a remainder.

1, 3, 641

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1911 and 1923. The biggest common factor number is the GCF number.
So the greatest common factor 1911 and 1923 is 3.

Also check out the Least Common Multiple of 1911 and 1923