What is the Greatest Common Factor of 4080 and 4085?

Greatest common factor (GCF) of 4080 and 4085 is 5.

GCF(4080,4085) = 5

We will now calculate the prime factors of 4080 and 4085, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 4080 and 4085.

How to find the GCF of 4080 and 4085?

We will first find the prime factorization of 4080 and 4085. After we will calculate the factors of 4080 and 4085 and find the biggest common factor number .

Step-1: Prime Factorization of 4080

Prime factors of 4080 are 2, 3, 5, 17. Prime factorization of 4080 in exponential form is:

4080 = 2⁴ × 3¹ × 5¹ × 17¹

Step-2: 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-3: Factors of 4080

List of positive integer factors of 4080 that divides 4080 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040

Step-4: Factors of 4085

List of positive integer factors of 4085 that divides 4080 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 4080 and 4085. The biggest common factor number is the GCF number.
So the greatest common factor 4080 and 4085 is 5.

Also check out the Least Common Multiple of 4080 and 4085