What is the Greatest Common Factor of 1917 and 1923?

Greatest common factor (GCF) of 1917 and 1923 is 3.

GCF(1917,1923) = 3

We will now calculate the prime factors of 1917 and 1923, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1917 and 1923.

How to find the GCF of 1917 and 1923?

We will first find the prime factorization of 1917 and 1923. After we will calculate the factors of 1917 and 1923 and find the biggest common factor number .

Step-1: Prime Factorization of 1917

Prime factors of 1917 are 3, 71. Prime factorization of 1917 in exponential form is:

1917 = 3³ × 71¹

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 1917

List of positive integer factors of 1917 that divides 1917 without a remainder.

1, 3, 9, 27, 71, 213, 639

Step-4: Factors of 1923

List of positive integer factors of 1923 that divides 1917 without a remainder.

1, 3, 641

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1917 and 1923. The biggest common factor number is the GCF number.
So the greatest common factor 1917 and 1923 is 3.

Also check out the Least Common Multiple of 1917 and 1923