What is the Greatest Common Factor of 38615 and 38620?

Greatest common factor (GCF) of 38615 and 38620 is 5.

GCF(38615,38620) = 5

We will now calculate the prime factors of 38615 and 38620, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38615 and 38620.

How to find the GCF of 38615 and 38620?

We will first find the prime factorization of 38615 and 38620. After we will calculate the factors of 38615 and 38620 and find the biggest common factor number .

Step-1: Prime Factorization of 38615

Prime factors of 38615 are 5, 7723. Prime factorization of 38615 in exponential form is:

38615 = 5¹ × 7723¹

Step-2: Prime Factorization of 38620

Prime factors of 38620 are 2, 5, 1931. Prime factorization of 38620 in exponential form is:

38620 = 2² × 5¹ × 1931¹

Step-3: Factors of 38615

List of positive integer factors of 38615 that divides 38615 without a remainder.

1, 5, 7723

Step-4: Factors of 38620

List of positive integer factors of 38620 that divides 38615 without a remainder.

1, 2, 4, 5, 10, 20, 1931, 3862, 7724, 9655, 19310

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38615 and 38620. The biggest common factor number is the GCF number.
So the greatest common factor 38615 and 38620 is 5.

Also check out the Least Common Multiple of 38615 and 38620