What is the Greatest Common Factor of 3879 and 3891?

Greatest common factor (GCF) of 3879 and 3891 is 3.

GCF(3879,3891) = 3

We will now calculate the prime factors of 3879 and 3891, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3879 and 3891.

How to find the GCF of 3879 and 3891?

We will first find the prime factorization of 3879 and 3891. After we will calculate the factors of 3879 and 3891 and find the biggest common factor number .

Step-1: Prime Factorization of 3879

Prime factors of 3879 are 3, 431. Prime factorization of 3879 in exponential form is:

3879 = 3² × 431¹

Step-2: Prime Factorization of 3891

Prime factors of 3891 are 3, 1297. Prime factorization of 3891 in exponential form is:

3891 = 3¹ × 1297¹

Step-3: Factors of 3879

List of positive integer factors of 3879 that divides 3879 without a remainder.

1, 3, 9, 431, 1293

Step-4: Factors of 3891

List of positive integer factors of 3891 that divides 3879 without a remainder.

1, 3, 1297

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3879 and 3891. The biggest common factor number is the GCF number.
So the greatest common factor 3879 and 3891 is 3.

Also check out the Least Common Multiple of 3879 and 3891