What is the Greatest Common Factor of 6858 and 6878?

Greatest common factor (GCF) of 6858 and 6878 is 2.

GCF(6858,6878) = 2

We will now calculate the prime factors of 6858 and 6878, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6858 and 6878.

How to find the GCF of 6858 and 6878?

We will first find the prime factorization of 6858 and 6878. After we will calculate the factors of 6858 and 6878 and find the biggest common factor number .

Step-1: Prime Factorization of 6858

Prime factors of 6858 are 2, 3, 127. Prime factorization of 6858 in exponential form is:

6858 = 2¹ × 3³ × 127¹

Step-2: Prime Factorization of 6878

Prime factors of 6878 are 2, 19, 181. Prime factorization of 6878 in exponential form is:

6878 = 2¹ × 19¹ × 181¹

Step-3: Factors of 6858

List of positive integer factors of 6858 that divides 6858 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 127, 254, 381, 762, 1143, 2286, 3429

Step-4: Factors of 6878

List of positive integer factors of 6878 that divides 6858 without a remainder.

1, 2, 19, 38, 181, 362, 3439

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6858 and 6878. The biggest common factor number is the GCF number.
So the greatest common factor 6858 and 6878 is 2.

Also check out the Least Common Multiple of 6858 and 6878