What is the Greatest Common Factor of 38655 and 38670?

Greatest common factor (GCF) of 38655 and 38670 is 15.

GCF(38655,38670) = 15

We will now calculate the prime factors of 38655 and 38670, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38655 and 38670.

How to find the GCF of 38655 and 38670?

We will first find the prime factorization of 38655 and 38670. After we will calculate the factors of 38655 and 38670 and find the biggest common factor number .

Step-1: Prime Factorization of 38655

Prime factors of 38655 are 3, 5, 859. Prime factorization of 38655 in exponential form is:

38655 = 3² × 5¹ × 859¹

Step-2: Prime Factorization of 38670

Prime factors of 38670 are 2, 3, 5, 1289. Prime factorization of 38670 in exponential form is:

38670 = 2¹ × 3¹ × 5¹ × 1289¹

Step-3: Factors of 38655

List of positive integer factors of 38655 that divides 38655 without a remainder.

1, 3, 5, 9, 15, 45, 859, 2577, 4295, 7731, 12885

Step-4: Factors of 38670

List of positive integer factors of 38670 that divides 38655 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 1289, 2578, 3867, 6445, 7734, 12890, 19335

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38655 and 38670. The biggest common factor number is the GCF number.
So the greatest common factor 38655 and 38670 is 15.

Also check out the Least Common Multiple of 38655 and 38670