What is the Greatest Common Factor of 72861 and 72873?

Greatest common factor (GCF) of 72861 and 72873 is 3.

GCF(72861,72873) = 3

We will now calculate the prime factors of 72861 and 72873, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72861 and 72873.

How to find the GCF of 72861 and 72873?

We will first find the prime factorization of 72861 and 72873. After we will calculate the factors of 72861 and 72873 and find the biggest common factor number .

Step-1: Prime Factorization of 72861

Prime factors of 72861 are 3, 149, 163. Prime factorization of 72861 in exponential form is:

72861 = 3¹ × 149¹ × 163¹

Step-2: Prime Factorization of 72873

Prime factors of 72873 are 3, 2699. Prime factorization of 72873 in exponential form is:

72873 = 3³ × 2699¹

Step-3: Factors of 72861

List of positive integer factors of 72861 that divides 72861 without a remainder.

1, 3, 149, 163, 447, 489, 24287

Step-4: Factors of 72873

List of positive integer factors of 72873 that divides 72861 without a remainder.

1, 3, 9, 27, 2699, 8097, 24291

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72861 and 72873. The biggest common factor number is the GCF number.
So the greatest common factor 72861 and 72873 is 3.

Also check out the Least Common Multiple of 72861 and 72873