What is the Greatest Common Factor of 55143 and 55161?

Greatest common factor (GCF) of 55143 and 55161 is 9.

GCF(55143,55161) = 9

We will now calculate the prime factors of 55143 and 55161, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 55143 and 55161.

How to find the GCF of 55143 and 55161?

We will first find the prime factorization of 55143 and 55161. After we will calculate the factors of 55143 and 55161 and find the biggest common factor number .

Step-1: Prime Factorization of 55143

Prime factors of 55143 are 3, 11, 557. Prime factorization of 55143 in exponential form is:

55143 = 3² × 11¹ × 557¹

Step-2: Prime Factorization of 55161

Prime factors of 55161 are 3, 227. Prime factorization of 55161 in exponential form is:

55161 = 3⁵ × 227¹

Step-3: Factors of 55143

List of positive integer factors of 55143 that divides 55143 without a remainder.

1, 3, 9, 11, 33, 99, 557, 1671, 5013, 6127, 18381

Step-4: Factors of 55161

List of positive integer factors of 55161 that divides 55143 without a remainder.

1, 3, 9, 27, 81, 227, 243, 681, 2043, 6129, 18387

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 55143 and 55161. The biggest common factor number is the GCF number.
So the greatest common factor 55143 and 55161 is 9.

Also check out the Least Common Multiple of 55143 and 55161