What is the Greatest Common Factor of 42391 and 42399?

Greatest common factor (GCF) of 42391 and 42399 is 1.

GCF(42391,42399) = 1

We will now calculate the prime factors of 42391 and 42399, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42391 and 42399.

How to find the GCF of 42391 and 42399?

We will first find the prime factorization of 42391 and 42399. After we will calculate the factors of 42391 and 42399 and find the biggest common factor number .

Step-1: Prime Factorization of 42391

Prime factors of 42391 are 42391. Prime factorization of 42391 in exponential form is:

42391 = 42391¹

Step-2: Prime Factorization of 42399

Prime factors of 42399 are 3, 7, 673. Prime factorization of 42399 in exponential form is:

42399 = 3² × 7¹ × 673¹

Step-3: Factors of 42391

List of positive integer factors of 42391 that divides 42391 without a remainder.

Step-4: Factors of 42399

List of positive integer factors of 42399 that divides 42391 without a remainder.

1, 3, 7, 9, 21, 63, 673, 2019, 4711, 6057, 14133

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42391 and 42399. The biggest common factor number is the GCF number.
So the greatest common factor 42391 and 42399 is 1.

Also check out the Least Common Multiple of 42391 and 42399