What is the Greatest Common Factor of 40391 and 40399?

Greatest common factor (GCF) of 40391 and 40399 is 1.

GCF(40391,40399) = 1

We will now calculate the prime factors of 40391 and 40399, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40391 and 40399.

How to find the GCF of 40391 and 40399?

We will first find the prime factorization of 40391 and 40399. After we will calculate the factors of 40391 and 40399 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 40399

Prime factors of 40399 are 71, 569. Prime factorization of 40399 in exponential form is:

40399 = 71¹ × 569¹

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 40399

List of positive integer factors of 40399 that divides 40391 without a remainder.

1, 71, 569

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40391 and 40399. The biggest common factor number is the GCF number.
So the greatest common factor 40391 and 40399 is 1.

Also check out the Least Common Multiple of 40391 and 40399