What is the Greatest Common Factor of 203 and 223?

Greatest common factor (GCF) of 203 and 223 is 1.

GCF(203,223) = 1

We will now calculate the prime factors of 203 and 223, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 203 and 223.

How to find the GCF of 203 and 223?

We will first find the prime factorization of 203 and 223. After we will calculate the factors of 203 and 223 and find the biggest common factor number .

Step-1: Prime Factorization of 203

Prime factors of 203 are 7, 29. Prime factorization of 203 in exponential form is:

203 = 7¹ × 29¹

Step-2: Prime Factorization of 223

Prime factors of 223 are 223. Prime factorization of 223 in exponential form is:

223 = 223¹

Step-3: Factors of 203

List of positive integer factors of 203 that divides 203 without a remainder.

1, 7, 29

Step-4: Factors of 223

List of positive integer factors of 223 that divides 203 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 203 and 223. The biggest common factor number is the GCF number.
So the greatest common factor 203 and 223 is 1.

Also check out the Least Common Multiple of 203 and 223