What is the Greatest Common Factor of 55203 and 55221?

Greatest common factor (GCF) of 55203 and 55221 is 3.

GCF(55203,55221) = 3

We will now calculate the prime factors of 55203 and 55221, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55203 and 55221.

How to find the GCF of 55203 and 55221?

We will first find the prime factorization of 55203 and 55221. After we will calculate the factors of 55203 and 55221 and find the biggest common factor number .

Step-1: Prime Factorization of 55203

Prime factors of 55203 are 3, 18401. Prime factorization of 55203 in exponential form is:

55203 = 3¹ × 18401¹

Step-2: Prime Factorization of 55221

Prime factors of 55221 are 3, 79, 233. Prime factorization of 55221 in exponential form is:

55221 = 3¹ × 79¹ × 233¹

Step-3: Factors of 55203

List of positive integer factors of 55203 that divides 55203 without a remainder.

1, 3, 18401

Step-4: Factors of 55221

List of positive integer factors of 55221 that divides 55203 without a remainder.

1, 3, 79, 233, 237, 699, 18407

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55203 and 55221. The biggest common factor number is the GCF number.
So the greatest common factor 55203 and 55221 is 3.

Also check out the Least Common Multiple of 55203 and 55221