What is the Greatest Common Factor of 55521 and 55530?

Greatest common factor (GCF) of 55521 and 55530 is 9.

GCF(55521,55530) = 9

We will now calculate the prime factors of 55521 and 55530, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55521 and 55530.

How to find the GCF of 55521 and 55530?

We will first find the prime factorization of 55521 and 55530. After we will calculate the factors of 55521 and 55530 and find the biggest common factor number .

Step-1: Prime Factorization of 55521

Prime factors of 55521 are 3, 31, 199. Prime factorization of 55521 in exponential form is:

55521 = 3² × 31¹ × 199¹

Step-2: Prime Factorization of 55530

Prime factors of 55530 are 2, 3, 5, 617. Prime factorization of 55530 in exponential form is:

55530 = 2¹ × 3² × 5¹ × 617¹

Step-3: Factors of 55521

List of positive integer factors of 55521 that divides 55521 without a remainder.

1, 3, 9, 31, 93, 199, 279, 597, 1791, 6169, 18507

Step-4: Factors of 55530

List of positive integer factors of 55530 that divides 55521 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 617, 1234, 1851, 3085, 3702, 5553, 6170, 9255, 11106, 18510, 27765

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55521 and 55530. The biggest common factor number is the GCF number.
So the greatest common factor 55521 and 55530 is 9.

Also check out the Least Common Multiple of 55521 and 55530