What is the Greatest Common Factor of 38440 and 38455?

Greatest common factor (GCF) of 38440 and 38455 is 5.

GCF(38440,38455) = 5

We will now calculate the prime factors of 38440 and 38455, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38440 and 38455.

How to find the GCF of 38440 and 38455?

We will first find the prime factorization of 38440 and 38455. After we will calculate the factors of 38440 and 38455 and find the biggest common factor number .

Step-1: Prime Factorization of 38440

Prime factors of 38440 are 2, 5, 31. Prime factorization of 38440 in exponential form is:

38440 = 2³ × 5¹ × 31²

Step-2: Prime Factorization of 38455

Prime factors of 38455 are 5, 7691. Prime factorization of 38455 in exponential form is:

38455 = 5¹ × 7691¹

Step-3: Factors of 38440

List of positive integer factors of 38440 that divides 38440 without a remainder.

1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7688, 9610, 19220

Step-4: Factors of 38455

List of positive integer factors of 38455 that divides 38440 without a remainder.

1, 5, 7691

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38440 and 38455. The biggest common factor number is the GCF number.
So the greatest common factor 38440 and 38455 is 5.

Also check out the Least Common Multiple of 38440 and 38455