What is the Greatest Common Factor of 39891 and 39906?

Greatest common factor (GCF) of 39891 and 39906 is 3.

GCF(39891,39906) = 3

We will now calculate the prime factors of 39891 and 39906, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39891 and 39906.

How to find the GCF of 39891 and 39906?

We will first find the prime factorization of 39891 and 39906. After we will calculate the factors of 39891 and 39906 and find the biggest common factor number .

Step-1: Prime Factorization of 39891

Prime factors of 39891 are 3, 13297. Prime factorization of 39891 in exponential form is:

39891 = 3¹ × 13297¹

Step-2: Prime Factorization of 39906

Prime factors of 39906 are 2, 3, 739. Prime factorization of 39906 in exponential form is:

39906 = 2¹ × 3³ × 739¹

Step-3: Factors of 39891

List of positive integer factors of 39891 that divides 39891 without a remainder.

1, 3, 13297

Step-4: Factors of 39906

List of positive integer factors of 39906 that divides 39891 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 739, 1478, 2217, 4434, 6651, 13302, 19953

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39891 and 39906. The biggest common factor number is the GCF number.
So the greatest common factor 39891 and 39906 is 3.

Also check out the Least Common Multiple of 39891 and 39906