What is the Greatest Common Factor of 221 and 239?

Greatest common factor (GCF) of 221 and 239 is 1.

GCF(221,239) = 1

We will now calculate the prime factors of 221 and 239, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 221 and 239.

How to find the GCF of 221 and 239?

We will first find the prime factorization of 221 and 239. After we will calculate the factors of 221 and 239 and find the biggest common factor number .

Step-1: Prime Factorization of 221

Prime factors of 221 are 13, 17. Prime factorization of 221 in exponential form is:

221 = 13¹ × 17¹

Step-2: Prime Factorization of 239

Prime factors of 239 are 239. Prime factorization of 239 in exponential form is:

239 = 239¹

Step-3: Factors of 221

List of positive integer factors of 221 that divides 221 without a remainder.

1, 13, 17

Step-4: Factors of 239

List of positive integer factors of 239 that divides 221 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 221 and 239. The biggest common factor number is the GCF number.
So the greatest common factor 221 and 239 is 1.

Also check out the Least Common Multiple of 221 and 239