What is the Greatest Common Factor of 40391 and 40397?

Greatest common factor (GCF) of 40391 and 40397 is 1.

GCF(40391,40397) = 1

We will now calculate the prime factors of 40391 and 40397, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40391 and 40397.

How to find the GCF of 40391 and 40397?

We will first find the prime factorization of 40391 and 40397. After we will calculate the factors of 40391 and 40397 and find the biggest common factor number .

Step-1: Prime Factorization of 40391

Prime factors of 40391 are 13, 239. Prime factorization of 40391 in exponential form is:

40391 = 13² × 239¹

Step-2: Prime Factorization of 40397

Prime factors of 40397 are 7, 29, 199. Prime factorization of 40397 in exponential form is:

40397 = 7¹ × 29¹ × 199¹

Step-3: Factors of 40391

List of positive integer factors of 40391 that divides 40391 without a remainder.

1, 13, 169, 239, 3107

Step-4: Factors of 40397

List of positive integer factors of 40397 that divides 40391 without a remainder.

1, 7, 29, 199, 203, 1393, 5771

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40391 and 40397. The biggest common factor number is the GCF number.
So the greatest common factor 40391 and 40397 is 1.

Also check out the Least Common Multiple of 40391 and 40397