What is the Greatest Common Factor of 15998 and 16004?

Greatest common factor (GCF) of 15998 and 16004 is 2.

GCF(15998,16004) = 2

We will now calculate the prime factors of 15998 and 16004, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15998 and 16004.

How to find the GCF of 15998 and 16004?

We will first find the prime factorization of 15998 and 16004. After we will calculate the factors of 15998 and 16004 and find the biggest common factor number .

Step-1: Prime Factorization of 15998

Prime factors of 15998 are 2, 19, 421. Prime factorization of 15998 in exponential form is:

15998 = 2¹ × 19¹ × 421¹

Step-2: Prime Factorization of 16004

Prime factors of 16004 are 2, 4001. Prime factorization of 16004 in exponential form is:

16004 = 2² × 4001¹

Step-3: Factors of 15998

List of positive integer factors of 15998 that divides 15998 without a remainder.

1, 2, 19, 38, 421, 842, 7999

Step-4: Factors of 16004

List of positive integer factors of 16004 that divides 15998 without a remainder.

1, 2, 4, 4001, 8002

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15998 and 16004. The biggest common factor number is the GCF number.
So the greatest common factor 15998 and 16004 is 2.

Also check out the Least Common Multiple of 15998 and 16004