What is the Greatest Common Factor of 28221 and 28228?

Greatest common factor (GCF) of 28221 and 28228 is 1.

GCF(28221,28228) = 1

We will now calculate the prime factors of 28221 and 28228, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28221 and 28228.

How to find the GCF of 28221 and 28228?

We will first find the prime factorization of 28221 and 28228. After we will calculate the factors of 28221 and 28228 and find the biggest common factor number .

Step-1: Prime Factorization of 28221

Prime factors of 28221 are 3, 23, 409. Prime factorization of 28221 in exponential form is:

28221 = 3¹ × 23¹ × 409¹

Step-2: Prime Factorization of 28228

Prime factors of 28228 are 2, 7057. Prime factorization of 28228 in exponential form is:

28228 = 2² × 7057¹

Step-3: Factors of 28221

List of positive integer factors of 28221 that divides 28221 without a remainder.

1, 3, 23, 69, 409, 1227, 9407

Step-4: Factors of 28228

List of positive integer factors of 28228 that divides 28221 without a remainder.

1, 2, 4, 7057, 14114

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28221 and 28228. The biggest common factor number is the GCF number.
So the greatest common factor 28221 and 28228 is 1.

Also check out the Least Common Multiple of 28221 and 28228