What is the Greatest Common Factor of 38910 and 38915?

Greatest common factor (GCF) of 38910 and 38915 is 5.

GCF(38910,38915) = 5

We will now calculate the prime factors of 38910 and 38915, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38910 and 38915.

How to find the GCF of 38910 and 38915?

We will first find the prime factorization of 38910 and 38915. After we will calculate the factors of 38910 and 38915 and find the biggest common factor number .

Step-1: Prime Factorization of 38910

Prime factors of 38910 are 2, 3, 5, 1297. Prime factorization of 38910 in exponential form is:

38910 = 2¹ × 3¹ × 5¹ × 1297¹

Step-2: Prime Factorization of 38915

Prime factors of 38915 are 5, 43, 181. Prime factorization of 38915 in exponential form is:

38915 = 5¹ × 43¹ × 181¹

Step-3: Factors of 38910

List of positive integer factors of 38910 that divides 38910 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 1297, 2594, 3891, 6485, 7782, 12970, 19455

Step-4: Factors of 38915

List of positive integer factors of 38915 that divides 38910 without a remainder.

1, 5, 43, 181, 215, 905, 7783

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38910 and 38915. The biggest common factor number is the GCF number.
So the greatest common factor 38910 and 38915 is 5.

Also check out the Least Common Multiple of 38910 and 38915