What is the Greatest Common Factor of 55287 and 55305?

Greatest common factor (GCF) of 55287 and 55305 is 9.

GCF(55287,55305) = 9

We will now calculate the prime factors of 55287 and 55305, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55287 and 55305.

How to find the GCF of 55287 and 55305?

We will first find the prime factorization of 55287 and 55305. After we will calculate the factors of 55287 and 55305 and find the biggest common factor number .

Step-1: Prime Factorization of 55287

Prime factors of 55287 are 3, 6143. Prime factorization of 55287 in exponential form is:

55287 = 3² × 6143¹

Step-2: Prime Factorization of 55305

Prime factors of 55305 are 3, 5, 1229. Prime factorization of 55305 in exponential form is:

55305 = 3² × 5¹ × 1229¹

Step-3: Factors of 55287

List of positive integer factors of 55287 that divides 55287 without a remainder.

1, 3, 9, 6143, 18429

Step-4: Factors of 55305

List of positive integer factors of 55305 that divides 55287 without a remainder.

1, 3, 5, 9, 15, 45, 1229, 3687, 6145, 11061, 18435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55287 and 55305. The biggest common factor number is the GCF number.
So the greatest common factor 55287 and 55305 is 9.

Also check out the Least Common Multiple of 55287 and 55305