What is the Greatest Common Factor of 1919 and 1939?

Greatest common factor (GCF) of 1919 and 1939 is 1.

GCF(1919,1939) = 1

We will now calculate the prime factors of 1919 and 1939, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1919 and 1939.

How to find the GCF of 1919 and 1939?

We will first find the prime factorization of 1919 and 1939. After we will calculate the factors of 1919 and 1939 and find the biggest common factor number .

Step-1: Prime Factorization of 1919

Prime factors of 1919 are 19, 101. Prime factorization of 1919 in exponential form is:

1919 = 19¹ × 101¹

Step-2: Prime Factorization of 1939

Prime factors of 1939 are 7, 277. Prime factorization of 1939 in exponential form is:

1939 = 7¹ × 277¹

Step-3: Factors of 1919

List of positive integer factors of 1919 that divides 1919 without a remainder.

1, 19, 101

Step-4: Factors of 1939

List of positive integer factors of 1939 that divides 1919 without a remainder.

1, 7, 277

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1919 and 1939. The biggest common factor number is the GCF number.
So the greatest common factor 1919 and 1939 is 1.

Also check out the Least Common Multiple of 1919 and 1939