What is the Greatest Common Factor of 28239 and 28243?

Greatest common factor (GCF) of 28239 and 28243 is 1.

GCF(28239,28243) = 1

We will now calculate the prime factors of 28239 and 28243, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28239 and 28243.

How to find the GCF of 28239 and 28243?

We will first find the prime factorization of 28239 and 28243. After we will calculate the factors of 28239 and 28243 and find the biggest common factor number .

Step-1: Prime Factorization of 28239

Prime factors of 28239 are 3, 9413. Prime factorization of 28239 in exponential form is:

28239 = 3¹ × 9413¹

Step-2: Prime Factorization of 28243

Prime factors of 28243 are 61, 463. Prime factorization of 28243 in exponential form is:

28243 = 61¹ × 463¹

Step-3: Factors of 28239

List of positive integer factors of 28239 that divides 28239 without a remainder.

1, 3, 9413

Step-4: Factors of 28243

List of positive integer factors of 28243 that divides 28239 without a remainder.

1, 61, 463

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28239 and 28243. The biggest common factor number is the GCF number.
So the greatest common factor 28239 and 28243 is 1.

Also check out the Least Common Multiple of 28239 and 28243