What is the Greatest Common Factor of 72291 and 72306?

Greatest common factor (GCF) of 72291 and 72306 is 3.

GCF(72291,72306) = 3

We will now calculate the prime factors of 72291 and 72306, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72291 and 72306.

How to find the GCF of 72291 and 72306?

We will first find the prime factorization of 72291 and 72306. After we will calculate the factors of 72291 and 72306 and find the biggest common factor number .

Step-1: Prime Factorization of 72291

Prime factors of 72291 are 3, 24097. Prime factorization of 72291 in exponential form is:

72291 = 3¹ × 24097¹

Step-2: Prime Factorization of 72306

Prime factors of 72306 are 2, 3, 13, 103. Prime factorization of 72306 in exponential form is:

72306 = 2¹ × 3³ × 13¹ × 103¹

Step-3: Factors of 72291

List of positive integer factors of 72291 that divides 72291 without a remainder.

1, 3, 24097

Step-4: Factors of 72306

List of positive integer factors of 72306 that divides 72291 without a remainder.

1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 103, 117, 206, 234, 309, 351, 618, 702, 927, 1339, 1854, 2678, 2781, 4017, 5562, 8034, 12051, 24102, 36153

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72291 and 72306. The biggest common factor number is the GCF number.
So the greatest common factor 72291 and 72306 is 3.

Also check out the Least Common Multiple of 72291 and 72306