What is the Greatest Common Factor of 21327 and 21331?

Greatest common factor (GCF) of 21327 and 21331 is 1.

GCF(21327,21331) = 1

We will now calculate the prime factors of 21327 and 21331, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21327 and 21331.

How to find the GCF of 21327 and 21331?

We will first find the prime factorization of 21327 and 21331. After we will calculate the factors of 21327 and 21331 and find the biggest common factor number .

Step-1: Prime Factorization of 21327

Prime factors of 21327 are 3, 7109. Prime factorization of 21327 in exponential form is:

21327 = 3¹ × 7109¹

Step-2: Prime Factorization of 21331

Prime factors of 21331 are 83, 257. Prime factorization of 21331 in exponential form is:

21331 = 83¹ × 257¹

Step-3: Factors of 21327

List of positive integer factors of 21327 that divides 21327 without a remainder.

1, 3, 7109

Step-4: Factors of 21331

List of positive integer factors of 21331 that divides 21327 without a remainder.

1, 83, 257

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21327 and 21331. The biggest common factor number is the GCF number.
So the greatest common factor 21327 and 21331 is 1.

Also check out the Least Common Multiple of 21327 and 21331