What is the Greatest Common Factor of 43143 and 43155?

Greatest common factor (GCF) of 43143 and 43155 is 3.

GCF(43143,43155) = 3

We will now calculate the prime factors of 43143 and 43155, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 43143 and 43155.

How to find the GCF of 43143 and 43155?

We will first find the prime factorization of 43143 and 43155. After we will calculate the factors of 43143 and 43155 and find the biggest common factor number .

Step-1: Prime Factorization of 43143

Prime factors of 43143 are 3, 73, 197. Prime factorization of 43143 in exponential form is:

43143 = 3¹ × 73¹ × 197¹

Step-2: Prime Factorization of 43155

Prime factors of 43155 are 3, 5, 7, 137. Prime factorization of 43155 in exponential form is:

43155 = 3² × 5¹ × 7¹ × 137¹

Step-3: Factors of 43143

List of positive integer factors of 43143 that divides 43143 without a remainder.

1, 3, 73, 197, 219, 591, 14381

Step-4: Factors of 43155

List of positive integer factors of 43155 that divides 43143 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 137, 315, 411, 685, 959, 1233, 2055, 2877, 4795, 6165, 8631, 14385

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 43143 and 43155. The biggest common factor number is the GCF number.
So the greatest common factor 43143 and 43155 is 3.

Also check out the Least Common Multiple of 43143 and 43155