What is the Greatest Common Factor of 77991 and 77998?

Greatest common factor (GCF) of 77991 and 77998 is 1.

GCF(77991,77998) = 1

We will now calculate the prime factors of 77991 and 77998, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77991 and 77998.

How to find the GCF of 77991 and 77998?

We will first find the prime factorization of 77991 and 77998. After we will calculate the factors of 77991 and 77998 and find the biggest common factor number .

Step-1: Prime Factorization of 77991

Prime factors of 77991 are 3, 25997. Prime factorization of 77991 in exponential form is:

77991 = 3¹ × 25997¹

Step-2: Prime Factorization of 77998

Prime factors of 77998 are 2, 59, 661. Prime factorization of 77998 in exponential form is:

77998 = 2¹ × 59¹ × 661¹

Step-3: Factors of 77991

List of positive integer factors of 77991 that divides 77991 without a remainder.

1, 3, 25997

Step-4: Factors of 77998

List of positive integer factors of 77998 that divides 77991 without a remainder.

1, 2, 59, 118, 661, 1322, 38999

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77991 and 77998. The biggest common factor number is the GCF number.
So the greatest common factor 77991 and 77998 is 1.

Also check out the Least Common Multiple of 77991 and 77998