What is the Greatest Common Factor of 15918 and 15938?

Greatest common factor (GCF) of 15918 and 15938 is 2.

GCF(15918,15938) = 2

We will now calculate the prime factors of 15918 and 15938, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15918 and 15938.

How to find the GCF of 15918 and 15938?

We will first find the prime factorization of 15918 and 15938. After we will calculate the factors of 15918 and 15938 and find the biggest common factor number .

Step-1: Prime Factorization of 15918

Prime factors of 15918 are 2, 3, 7, 379. Prime factorization of 15918 in exponential form is:

15918 = 2¹ × 3¹ × 7¹ × 379¹

Step-2: Prime Factorization of 15938

Prime factors of 15938 are 2, 13, 613. Prime factorization of 15938 in exponential form is:

15938 = 2¹ × 13¹ × 613¹

Step-3: Factors of 15918

List of positive integer factors of 15918 that divides 15918 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 379, 758, 1137, 2274, 2653, 5306, 7959

Step-4: Factors of 15938

List of positive integer factors of 15938 that divides 15918 without a remainder.

1, 2, 13, 26, 613, 1226, 7969

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15918 and 15938. The biggest common factor number is the GCF number.
So the greatest common factor 15918 and 15938 is 2.

Also check out the Least Common Multiple of 15918 and 15938