What is the Greatest Common Factor of 19203 and 19221?

Greatest common factor (GCF) of 19203 and 19221 is 3.

GCF(19203,19221) = 3

We will now calculate the prime factors of 19203 and 19221, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19203 and 19221.

How to find the GCF of 19203 and 19221?

We will first find the prime factorization of 19203 and 19221. After we will calculate the factors of 19203 and 19221 and find the biggest common factor number .

Step-1: Prime Factorization of 19203

Prime factors of 19203 are 3, 37, 173. Prime factorization of 19203 in exponential form is:

19203 = 3¹ × 37¹ × 173¹

Step-2: Prime Factorization of 19221

Prime factors of 19221 are 3, 43, 149. Prime factorization of 19221 in exponential form is:

19221 = 3¹ × 43¹ × 149¹

Step-3: Factors of 19203

List of positive integer factors of 19203 that divides 19203 without a remainder.

1, 3, 37, 111, 173, 519, 6401

Step-4: Factors of 19221

List of positive integer factors of 19221 that divides 19203 without a remainder.

1, 3, 43, 129, 149, 447, 6407

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19203 and 19221. The biggest common factor number is the GCF number.
So the greatest common factor 19203 and 19221 is 3.

Also check out the Least Common Multiple of 19203 and 19221