What is the Greatest Common Factor of 38770 and 38780?

Greatest common factor (GCF) of 38770 and 38780 is 10.

GCF(38770,38780) = 10

We will now calculate the prime factors of 38770 and 38780, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38770 and 38780.

How to find the GCF of 38770 and 38780?

We will first find the prime factorization of 38770 and 38780. After we will calculate the factors of 38770 and 38780 and find the biggest common factor number .

Step-1: Prime Factorization of 38770

Prime factors of 38770 are 2, 5, 3877. Prime factorization of 38770 in exponential form is:

38770 = 2¹ × 5¹ × 3877¹

Step-2: Prime Factorization of 38780

Prime factors of 38780 are 2, 5, 7, 277. Prime factorization of 38780 in exponential form is:

38780 = 2² × 5¹ × 7¹ × 277¹

Step-3: Factors of 38770

List of positive integer factors of 38770 that divides 38770 without a remainder.

1, 2, 5, 10, 3877, 7754, 19385

Step-4: Factors of 38780

List of positive integer factors of 38780 that divides 38770 without a remainder.

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 554, 1108, 1385, 1939, 2770, 3878, 5540, 7756, 9695, 19390

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38770 and 38780. The biggest common factor number is the GCF number.
So the greatest common factor 38770 and 38780 is 10.

Also check out the Least Common Multiple of 38770 and 38780