What is the Greatest Common Factor of 11421 and 11439?

Greatest common factor (GCF) of 11421 and 11439 is 9.

GCF(11421,11439) = 9

We will now calculate the prime factors of 11421 and 11439, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11421 and 11439.

How to find the GCF of 11421 and 11439?

We will first find the prime factorization of 11421 and 11439. After we will calculate the factors of 11421 and 11439 and find the biggest common factor number .

Step-1: Prime Factorization of 11421

Prime factors of 11421 are 3, 47. Prime factorization of 11421 in exponential form is:

11421 = 3⁵ × 47¹

Step-2: Prime Factorization of 11439

Prime factors of 11439 are 3, 31, 41. Prime factorization of 11439 in exponential form is:

11439 = 3² × 31¹ × 41¹

Step-3: Factors of 11421

List of positive integer factors of 11421 that divides 11421 without a remainder.

1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 3807

Step-4: Factors of 11439

List of positive integer factors of 11439 that divides 11421 without a remainder.

1, 3, 9, 31, 41, 93, 123, 279, 369, 1271, 3813

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11421 and 11439. The biggest common factor number is the GCF number.
So the greatest common factor 11421 and 11439 is 9.

Also check out the Least Common Multiple of 11421 and 11439