What is the Greatest Common Factor of 7989 and 7999?

Greatest common factor (GCF) of 7989 and 7999 is 1.

GCF(7989,7999) = 1

We will now calculate the prime factors of 7989 and 7999, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7989 and 7999.

How to find the GCF of 7989 and 7999?

We will first find the prime factorization of 7989 and 7999. After we will calculate the factors of 7989 and 7999 and find the biggest common factor number .

Step-1: Prime Factorization of 7989

Prime factors of 7989 are 3, 2663. Prime factorization of 7989 in exponential form is:

7989 = 3¹ × 2663¹

Step-2: Prime Factorization of 7999

Prime factors of 7999 are 19, 421. Prime factorization of 7999 in exponential form is:

7999 = 19¹ × 421¹

Step-3: Factors of 7989

List of positive integer factors of 7989 that divides 7989 without a remainder.

1, 3, 2663

Step-4: Factors of 7999

List of positive integer factors of 7999 that divides 7989 without a remainder.

1, 19, 421

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7989 and 7999. The biggest common factor number is the GCF number.
So the greatest common factor 7989 and 7999 is 1.

Also check out the Least Common Multiple of 7989 and 7999