What is the Greatest Common Factor of 23405 and 23421?

Greatest common factor (GCF) of 23405 and 23421 is 1.

GCF(23405,23421) = 1

We will now calculate the prime factors of 23405 and 23421, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 23405 and 23421.

How to find the GCF of 23405 and 23421?

We will first find the prime factorization of 23405 and 23421. After we will calculate the factors of 23405 and 23421 and find the biggest common factor number .

Step-1: Prime Factorization of 23405

Prime factors of 23405 are 5, 31, 151. Prime factorization of 23405 in exponential form is:

23405 = 5¹ × 31¹ × 151¹

Step-2: Prime Factorization of 23421

Prime factors of 23421 are 3, 37, 211. Prime factorization of 23421 in exponential form is:

23421 = 3¹ × 37¹ × 211¹

Step-3: Factors of 23405

List of positive integer factors of 23405 that divides 23405 without a remainder.

1, 5, 31, 151, 155, 755, 4681

Step-4: Factors of 23421

List of positive integer factors of 23421 that divides 23405 without a remainder.

1, 3, 37, 111, 211, 633, 7807

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 23405 and 23421. The biggest common factor number is the GCF number.
So the greatest common factor 23405 and 23421 is 1.

Also check out the Least Common Multiple of 23405 and 23421