What is the Greatest Common Factor of 38945 and 38955?

Greatest common factor (GCF) of 38945 and 38955 is 5.

GCF(38945,38955) = 5

We will now calculate the prime factors of 38945 and 38955, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38945 and 38955.

How to find the GCF of 38945 and 38955?

We will first find the prime factorization of 38945 and 38955. After we will calculate the factors of 38945 and 38955 and find the biggest common factor number .

Step-1: Prime Factorization of 38945

Prime factors of 38945 are 5, 7789. Prime factorization of 38945 in exponential form is:

38945 = 5¹ × 7789¹

Step-2: Prime Factorization of 38955

Prime factors of 38955 are 3, 5, 7, 53. Prime factorization of 38955 in exponential form is:

38955 = 3¹ × 5¹ × 7² × 53¹

Step-3: Factors of 38945

List of positive integer factors of 38945 that divides 38945 without a remainder.

1, 5, 7789

Step-4: Factors of 38955

List of positive integer factors of 38955 that divides 38945 without a remainder.

1, 3, 5, 7, 15, 21, 35, 49, 53, 105, 147, 159, 245, 265, 371, 735, 795, 1113, 1855, 2597, 5565, 7791, 12985

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38945 and 38955. The biggest common factor number is the GCF number.
So the greatest common factor 38945 and 38955 is 5.

Also check out the Least Common Multiple of 38945 and 38955