What is the Greatest Common Factor of 39980 and 39989?

Greatest common factor (GCF) of 39980 and 39989 is 1.

GCF(39980,39989) = 1

We will now calculate the prime factors of 39980 and 39989, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39980 and 39989.

How to find the GCF of 39980 and 39989?

We will first find the prime factorization of 39980 and 39989. After we will calculate the factors of 39980 and 39989 and find the biggest common factor number .

Step-1: Prime Factorization of 39980

Prime factors of 39980 are 2, 5, 1999. Prime factorization of 39980 in exponential form is:

39980 = 2² × 5¹ × 1999¹

Step-2: Prime Factorization of 39989

Prime factors of 39989 are 39989. Prime factorization of 39989 in exponential form is:

39989 = 39989¹

Step-3: Factors of 39980

List of positive integer factors of 39980 that divides 39980 without a remainder.

1, 2, 4, 5, 10, 20, 1999, 3998, 7996, 9995, 19990

Step-4: Factors of 39989

List of positive integer factors of 39989 that divides 39980 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39980 and 39989. The biggest common factor number is the GCF number.
So the greatest common factor 39980 and 39989 is 1.

Also check out the Least Common Multiple of 39980 and 39989