What is the Greatest Common Factor of 55503 and 55509?

Greatest common factor (GCF) of 55503 and 55509 is 3.

GCF(55503,55509) = 3

We will now calculate the prime factors of 55503 and 55509, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55503 and 55509.

How to find the GCF of 55503 and 55509?

We will first find the prime factorization of 55503 and 55509. After we will calculate the factors of 55503 and 55509 and find the biggest common factor number .

Step-1: Prime Factorization of 55503

Prime factors of 55503 are 3, 7, 881. Prime factorization of 55503 in exponential form is:

55503 = 3² × 7¹ × 881¹

Step-2: Prime Factorization of 55509

Prime factors of 55509 are 3, 18503. Prime factorization of 55509 in exponential form is:

55509 = 3¹ × 18503¹

Step-3: Factors of 55503

List of positive integer factors of 55503 that divides 55503 without a remainder.

1, 3, 7, 9, 21, 63, 881, 2643, 6167, 7929, 18501

Step-4: Factors of 55509

List of positive integer factors of 55509 that divides 55503 without a remainder.

1, 3, 18503

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55503 and 55509. The biggest common factor number is the GCF number.
So the greatest common factor 55503 and 55509 is 3.

Also check out the Least Common Multiple of 55503 and 55509