What is the Greatest Common Factor of 38780 and 38790?

Greatest common factor (GCF) of 38780 and 38790 is 10.

GCF(38780,38790) = 10

We will now calculate the prime factors of 38780 and 38790, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38780 and 38790.

How to find the GCF of 38780 and 38790?

We will first find the prime factorization of 38780 and 38790. After we will calculate the factors of 38780 and 38790 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 38790

Prime factors of 38790 are 2, 3, 5, 431. Prime factorization of 38790 in exponential form is:

38790 = 2¹ × 3² × 5¹ × 431¹

Step-3: Factors of 38780

List of positive integer factors of 38780 that divides 38780 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

Step-4: Factors of 38790

List of positive integer factors of 38790 that divides 38780 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 431, 862, 1293, 2155, 2586, 3879, 4310, 6465, 7758, 12930, 19395

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38780 and 38790. The biggest common factor number is the GCF number.
So the greatest common factor 38780 and 38790 is 10.

Also check out the Least Common Multiple of 38780 and 38790