What is the Greatest Common Factor of 38955 and 38961?

Greatest common factor (GCF) of 38955 and 38961 is 3.

GCF(38955,38961) = 3

We will now calculate the prime factors of 38955 and 38961, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38955 and 38961.

How to find the GCF of 38955 and 38961?

We will first find the prime factorization of 38955 and 38961. After we will calculate the factors of 38955 and 38961 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 38961

Prime factors of 38961 are 3, 13, 37. Prime factorization of 38961 in exponential form is:

38961 = 3⁴ × 13¹ × 37¹

Step-3: Factors of 38955

List of positive integer factors of 38955 that divides 38955 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

Step-4: Factors of 38961

List of positive integer factors of 38961 that divides 38955 without a remainder.

1, 3, 9, 13, 27, 37, 39, 81, 111, 117, 333, 351, 481, 999, 1053, 1443, 2997, 4329, 12987

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38955 and 38961. The biggest common factor number is the GCF number.
So the greatest common factor 38955 and 38961 is 3.

Also check out the Least Common Multiple of 38955 and 38961