What is the Greatest Common Factor of 4085 and 4105?

Greatest common factor (GCF) of 4085 and 4105 is 5.

GCF(4085,4105) = 5

We will now calculate the prime factors of 4085 and 4105, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4085 and 4105.

How to find the GCF of 4085 and 4105?

We will first find the prime factorization of 4085 and 4105. After we will calculate the factors of 4085 and 4105 and find the biggest common factor number .

Step-1: Prime Factorization of 4085

Prime factors of 4085 are 5, 19, 43. Prime factorization of 4085 in exponential form is:

4085 = 5¹ × 19¹ × 43¹

Step-2: Prime Factorization of 4105

Prime factors of 4105 are 5, 821. Prime factorization of 4105 in exponential form is:

4105 = 5¹ × 821¹

Step-3: Factors of 4085

List of positive integer factors of 4085 that divides 4085 without a remainder.

1, 5, 19, 43, 95, 215, 817

Step-4: Factors of 4105

List of positive integer factors of 4105 that divides 4085 without a remainder.

1, 5, 821

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4085 and 4105. The biggest common factor number is the GCF number.
So the greatest common factor 4085 and 4105 is 5.

Also check out the Least Common Multiple of 4085 and 4105