What is the Greatest Common Factor of 1939 and 1956?

Greatest common factor (GCF) of 1939 and 1956 is 1.

GCF(1939,1956) = 1

We will now calculate the prime factors of 1939 and 1956, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1939 and 1956.

How to find the GCF of 1939 and 1956?

We will first find the prime factorization of 1939 and 1956. After we will calculate the factors of 1939 and 1956 and find the biggest common factor number .

Step-1: Prime Factorization of 1939

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

1939 = 7¹ × 277¹

Step-2: Prime Factorization of 1956

Prime factors of 1956 are 2, 3, 163. Prime factorization of 1956 in exponential form is:

1956 = 2² × 3¹ × 163¹

Step-3: Factors of 1939

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

1, 7, 277

Step-4: Factors of 1956

List of positive integer factors of 1956 that divides 1939 without a remainder.

1, 2, 3, 4, 6, 12, 163, 326, 489, 652, 978

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1939 and 1956. The biggest common factor number is the GCF number.
So the greatest common factor 1939 and 1956 is 1.

Also check out the Least Common Multiple of 1939 and 1956