What is the Greatest Common Factor of 3998 and 4018?

Greatest common factor (GCF) of 3998 and 4018 is 2.

GCF(3998,4018) = 2

We will now calculate the prime factors of 3998 and 4018, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 3998 and 4018.

How to find the GCF of 3998 and 4018?

We will first find the prime factorization of 3998 and 4018. After we will calculate the factors of 3998 and 4018 and find the biggest common factor number .

Step-1: Prime Factorization of 3998

Prime factors of 3998 are 2, 1999. Prime factorization of 3998 in exponential form is:

3998 = 2¹ × 1999¹

Step-2: Prime Factorization of 4018

Prime factors of 4018 are 2, 7, 41. Prime factorization of 4018 in exponential form is:

4018 = 2¹ × 7² × 41¹

Step-3: Factors of 3998

List of positive integer factors of 3998 that divides 3998 without a remainder.

1, 2, 1999

Step-4: Factors of 4018

List of positive integer factors of 4018 that divides 3998 without a remainder.

1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 3998 and 4018. The biggest common factor number is the GCF number.
So the greatest common factor 3998 and 4018 is 2.

Also check out the Least Common Multiple of 3998 and 4018