What is the Greatest Common Factor of 19982 and 19989?

Greatest common factor (GCF) of 19982 and 19989 is 1.

GCF(19982,19989) = 1

We will now calculate the prime factors of 19982 and 19989, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19982 and 19989.

How to find the GCF of 19982 and 19989?

We will first find the prime factorization of 19982 and 19989. After we will calculate the factors of 19982 and 19989 and find the biggest common factor number .

Step-1: Prime Factorization of 19982

Prime factors of 19982 are 2, 97, 103. Prime factorization of 19982 in exponential form is:

19982 = 2¹ × 97¹ × 103¹

Step-2: Prime Factorization of 19989

Prime factors of 19989 are 3, 2221. Prime factorization of 19989 in exponential form is:

19989 = 3² × 2221¹

Step-3: Factors of 19982

List of positive integer factors of 19982 that divides 19982 without a remainder.

1, 2, 97, 103, 194, 206, 9991

Step-4: Factors of 19989

List of positive integer factors of 19989 that divides 19982 without a remainder.

1, 3, 9, 2221, 6663

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19982 and 19989. The biggest common factor number is the GCF number.
So the greatest common factor 19982 and 19989 is 1.

Also check out the Least Common Multiple of 19982 and 19989