What is the Greatest Common Factor of 19939 and 19957?

Greatest common factor (GCF) of 19939 and 19957 is 1.

GCF(19939,19957) = 1

We will now calculate the prime factors of 19939 and 19957, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19939 and 19957.

How to find the GCF of 19939 and 19957?

We will first find the prime factorization of 19939 and 19957. After we will calculate the factors of 19939 and 19957 and find the biggest common factor number .

Step-1: Prime Factorization of 19939

Prime factors of 19939 are 127, 157. Prime factorization of 19939 in exponential form is:

19939 = 127¹ × 157¹

Step-2: Prime Factorization of 19957

Prime factors of 19957 are 7, 2851. Prime factorization of 19957 in exponential form is:

19957 = 7¹ × 2851¹

Step-3: Factors of 19939

List of positive integer factors of 19939 that divides 19939 without a remainder.

1, 127, 157

Step-4: Factors of 19957

List of positive integer factors of 19957 that divides 19939 without a remainder.

1, 7, 2851

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19939 and 19957. The biggest common factor number is the GCF number.
So the greatest common factor 19939 and 19957 is 1.

Also check out the Least Common Multiple of 19939 and 19957