What is the Greatest Common Factor of 39861 and 39876?

Greatest common factor (GCF) of 39861 and 39876 is 3.

GCF(39861,39876) = 3

We will now calculate the prime factors of 39861 and 39876, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39861 and 39876.

How to find the GCF of 39861 and 39876?

We will first find the prime factorization of 39861 and 39876. After we will calculate the factors of 39861 and 39876 and find the biggest common factor number .

Step-1: Prime Factorization of 39861

Prime factors of 39861 are 3, 43, 103. Prime factorization of 39861 in exponential form is:

39861 = 3² × 43¹ × 103¹

Step-2: Prime Factorization of 39876

Prime factors of 39876 are 2, 3, 3323. Prime factorization of 39876 in exponential form is:

39876 = 2² × 3¹ × 3323¹

Step-3: Factors of 39861

List of positive integer factors of 39861 that divides 39861 without a remainder.

1, 3, 9, 43, 103, 129, 309, 387, 927, 4429, 13287

Step-4: Factors of 39876

List of positive integer factors of 39876 that divides 39861 without a remainder.

1, 2, 3, 4, 6, 12, 3323, 6646, 9969, 13292, 19938

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39861 and 39876. The biggest common factor number is the GCF number.
So the greatest common factor 39861 and 39876 is 3.

Also check out the Least Common Multiple of 39861 and 39876