What is the Greatest Common Factor of 6855 and 6865?

Greatest common factor (GCF) of 6855 and 6865 is 5.

GCF(6855,6865) = 5

We will now calculate the prime factors of 6855 and 6865, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6855 and 6865.

How to find the GCF of 6855 and 6865?

We will first find the prime factorization of 6855 and 6865. After we will calculate the factors of 6855 and 6865 and find the biggest common factor number .

Step-1: Prime Factorization of 6855

Prime factors of 6855 are 3, 5, 457. Prime factorization of 6855 in exponential form is:

6855 = 3¹ × 5¹ × 457¹

Step-2: Prime Factorization of 6865

Prime factors of 6865 are 5, 1373. Prime factorization of 6865 in exponential form is:

6865 = 5¹ × 1373¹

Step-3: Factors of 6855

List of positive integer factors of 6855 that divides 6855 without a remainder.

1, 3, 5, 15, 457, 1371, 2285

Step-4: Factors of 6865

List of positive integer factors of 6865 that divides 6855 without a remainder.

1, 5, 1373

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6855 and 6865. The biggest common factor number is the GCF number.
So the greatest common factor 6855 and 6865 is 5.

Also check out the Least Common Multiple of 6855 and 6865