What is the Greatest Common Factor of 97991 and 97997?

Greatest common factor (GCF) of 97991 and 97997 is 1.

GCF(97991,97997) = 1

We will now calculate the prime factors of 97991 and 97997, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 97991 and 97997.

How to find the GCF of 97991 and 97997?

We will first find the prime factorization of 97991 and 97997. After we will calculate the factors of 97991 and 97997 and find the biggest common factor number .

Step-1: Prime Factorization of 97991

Prime factors of 97991 are 29, 31, 109. Prime factorization of 97991 in exponential form is:

97991 = 29¹ × 31¹ × 109¹

Step-2: Prime Factorization of 97997

Prime factors of 97997 are 43, 53. Prime factorization of 97997 in exponential form is:

97997 = 43² × 53¹

Step-3: Factors of 97991

List of positive integer factors of 97991 that divides 97991 without a remainder.

1, 29, 31, 109, 899, 3161, 3379

Step-4: Factors of 97997

List of positive integer factors of 97997 that divides 97991 without a remainder.

1, 43, 53, 1849, 2279

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 97991 and 97997. The biggest common factor number is the GCF number.
So the greatest common factor 97991 and 97997 is 1.

Also check out the Least Common Multiple of 97991 and 97997