What is the Greatest Common Factor of 18904 and 18908?

Greatest common factor (GCF) of 18904 and 18908 is 4.

GCF(18904,18908) = 4

We will now calculate the prime factors of 18904 and 18908, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18904 and 18908.

How to find the GCF of 18904 and 18908?

We will first find the prime factorization of 18904 and 18908. After we will calculate the factors of 18904 and 18908 and find the biggest common factor number .

Step-1: Prime Factorization of 18904

Prime factors of 18904 are 2, 17, 139. Prime factorization of 18904 in exponential form is:

18904 = 2³ × 17¹ × 139¹

Step-2: Prime Factorization of 18908

Prime factors of 18908 are 2, 29, 163. Prime factorization of 18908 in exponential form is:

18908 = 2² × 29¹ × 163¹

Step-3: Factors of 18904

List of positive integer factors of 18904 that divides 18904 without a remainder.

1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 1112, 2363, 4726, 9452

Step-4: Factors of 18908

List of positive integer factors of 18908 that divides 18904 without a remainder.

1, 2, 4, 29, 58, 116, 163, 326, 652, 4727, 9454

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18904 and 18908. The biggest common factor number is the GCF number.
So the greatest common factor 18904 and 18908 is 4.

Also check out the Least Common Multiple of 18904 and 18908