What is the Greatest Common Factor of 71998 and 72018?

Greatest common factor (GCF) of 71998 and 72018 is 2.

GCF(71998,72018) = 2

We will now calculate the prime factors of 71998 and 72018, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71998 and 72018.

How to find the GCF of 71998 and 72018?

We will first find the prime factorization of 71998 and 72018. After we will calculate the factors of 71998 and 72018 and find the biggest common factor number .

Step-1: Prime Factorization of 71998

Prime factors of 71998 are 2, 35999. Prime factorization of 71998 in exponential form is:

71998 = 2¹ × 35999¹

Step-2: Prime Factorization of 72018

Prime factors of 72018 are 2, 3, 4001. Prime factorization of 72018 in exponential form is:

72018 = 2¹ × 3² × 4001¹

Step-3: Factors of 71998

List of positive integer factors of 71998 that divides 71998 without a remainder.

1, 2, 35999

Step-4: Factors of 72018

List of positive integer factors of 72018 that divides 71998 without a remainder.

1, 2, 3, 6, 9, 18, 4001, 8002, 12003, 24006, 36009

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71998 and 72018. The biggest common factor number is the GCF number.
So the greatest common factor 71998 and 72018 is 2.

Also check out the Least Common Multiple of 71998 and 72018