What is the Greatest Common Factor of 18998 and 19018?

Greatest common factor (GCF) of 18998 and 19018 is 2.

GCF(18998,19018) = 2

We will now calculate the prime factors of 18998 and 19018, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18998 and 19018.

How to find the GCF of 18998 and 19018?

We will first find the prime factorization of 18998 and 19018. After we will calculate the factors of 18998 and 19018 and find the biggest common factor number .

Step-1: Prime Factorization of 18998

Prime factors of 18998 are 2, 7, 23, 59. Prime factorization of 18998 in exponential form is:

18998 = 2¹ × 7¹ × 23¹ × 59¹

Step-2: Prime Factorization of 19018

Prime factors of 19018 are 2, 37, 257. Prime factorization of 19018 in exponential form is:

19018 = 2¹ × 37¹ × 257¹

Step-3: Factors of 18998

List of positive integer factors of 18998 that divides 18998 without a remainder.

1, 2, 7, 14, 23, 46, 59, 118, 161, 322, 413, 826, 1357, 2714, 9499

Step-4: Factors of 19018

List of positive integer factors of 19018 that divides 18998 without a remainder.

1, 2, 37, 74, 257, 514, 9509

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18998 and 19018. The biggest common factor number is the GCF number.
So the greatest common factor 18998 and 19018 is 2.

Also check out the Least Common Multiple of 18998 and 19018