What is the Greatest Common Factor of 20005 and 20015?

Greatest common factor (GCF) of 20005 and 20015 is 5.

GCF(20005,20015) = 5

We will now calculate the prime factors of 20005 and 20015, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20005 and 20015.

How to find the GCF of 20005 and 20015?

We will first find the prime factorization of 20005 and 20015. After we will calculate the factors of 20005 and 20015 and find the biggest common factor number .

Step-1: Prime Factorization of 20005

Prime factors of 20005 are 5, 4001. Prime factorization of 20005 in exponential form is:

20005 = 5¹ × 4001¹

Step-2: Prime Factorization of 20015

Prime factors of 20015 are 5, 4003. Prime factorization of 20015 in exponential form is:

20015 = 5¹ × 4003¹

Step-3: Factors of 20005

List of positive integer factors of 20005 that divides 20005 without a remainder.

1, 5, 4001

Step-4: Factors of 20015

List of positive integer factors of 20015 that divides 20005 without a remainder.

1, 5, 4003

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20005 and 20015. The biggest common factor number is the GCF number.
So the greatest common factor 20005 and 20015 is 5.

Also check out the Least Common Multiple of 20005 and 20015