What is the Greatest Common Factor of 200 and 205?

Greatest common factor (GCF) of 200 and 205 is 5.

GCF(200,205) = 5

We will now calculate the prime factors of 200 and 205, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 200 and 205.

How to find the GCF of 200 and 205?

We will first find the prime factorization of 200 and 205. After we will calculate the factors of 200 and 205 and find the biggest common factor number .

Step-1: Prime Factorization of 200

Prime factors of 200 are 2, 5. Prime factorization of 200 in exponential form is:

200 = 2³ × 5²

Step-2: Prime Factorization of 205

Prime factors of 205 are 5, 41. Prime factorization of 205 in exponential form is:

205 = 5¹ × 41¹

Step-3: Factors of 200

List of positive integer factors of 200 that divides 200 without a remainder.

1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100

Step-4: Factors of 205

List of positive integer factors of 205 that divides 200 without a remainder.

1, 5, 41

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 200 and 205. The biggest common factor number is the GCF number.
So the greatest common factor 200 and 205 is 5.

Also check out the Least Common Multiple of 200 and 205