What is the Greatest Common Factor of 13405 and 13421?

Greatest common factor (GCF) of 13405 and 13421 is 1.

GCF(13405,13421) = 1

We will now calculate the prime factors of 13405 and 13421, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13405 and 13421.

How to find the GCF of 13405 and 13421?

We will first find the prime factorization of 13405 and 13421. After we will calculate the factors of 13405 and 13421 and find the biggest common factor number .

Step-1: Prime Factorization of 13405

Prime factors of 13405 are 5, 7, 383. Prime factorization of 13405 in exponential form is:

13405 = 5¹ × 7¹ × 383¹

Step-2: Prime Factorization of 13421

Prime factors of 13421 are 13421. Prime factorization of 13421 in exponential form is:

13421 = 13421¹

Step-3: Factors of 13405

List of positive integer factors of 13405 that divides 13405 without a remainder.

1, 5, 7, 35, 383, 1915, 2681

Step-4: Factors of 13421

List of positive integer factors of 13421 that divides 13405 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13405 and 13421. The biggest common factor number is the GCF number.
So the greatest common factor 13405 and 13421 is 1.

Also check out the Least Common Multiple of 13405 and 13421