What is the Greatest Common Factor of 19131 and 19143?

Greatest common factor (GCF) of 19131 and 19143 is 3.

GCF(19131,19143) = 3

We will now calculate the prime factors of 19131 and 19143, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19131 and 19143.

How to find the GCF of 19131 and 19143?

We will first find the prime factorization of 19131 and 19143. After we will calculate the factors of 19131 and 19143 and find the biggest common factor number .

Step-1: Prime Factorization of 19131

Prime factors of 19131 are 3, 7, 911. Prime factorization of 19131 in exponential form is:

19131 = 3¹ × 7¹ × 911¹

Step-2: Prime Factorization of 19143

Prime factors of 19143 are 3, 709. Prime factorization of 19143 in exponential form is:

19143 = 3³ × 709¹

Step-3: Factors of 19131

List of positive integer factors of 19131 that divides 19131 without a remainder.

1, 3, 7, 21, 911, 2733, 6377

Step-4: Factors of 19143

List of positive integer factors of 19143 that divides 19131 without a remainder.

1, 3, 9, 27, 709, 2127, 6381

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19131 and 19143. The biggest common factor number is the GCF number.
So the greatest common factor 19131 and 19143 is 3.

Also check out the Least Common Multiple of 19131 and 19143