What is the Greatest Common Factor of 72255 and 72261?

Greatest common factor (GCF) of 72255 and 72261 is 3.

GCF(72255,72261) = 3

We will now calculate the prime factors of 72255 and 72261, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72255 and 72261.

How to find the GCF of 72255 and 72261?

We will first find the prime factorization of 72255 and 72261. After we will calculate the factors of 72255 and 72261 and find the biggest common factor number .

Step-1: Prime Factorization of 72255

Prime factors of 72255 are 3, 5, 4817. Prime factorization of 72255 in exponential form is:

72255 = 3¹ × 5¹ × 4817¹

Step-2: Prime Factorization of 72261

Prime factors of 72261 are 3, 7, 31, 37. Prime factorization of 72261 in exponential form is:

72261 = 3² × 7¹ × 31¹ × 37¹

Step-3: Factors of 72255

List of positive integer factors of 72255 that divides 72255 without a remainder.

1, 3, 5, 15, 4817, 14451, 24085

Step-4: Factors of 72261

List of positive integer factors of 72261 that divides 72255 without a remainder.

1, 3, 7, 9, 21, 31, 37, 63, 93, 111, 217, 259, 279, 333, 651, 777, 1147, 1953, 2331, 3441, 8029, 10323, 24087

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72255 and 72261. The biggest common factor number is the GCF number.
So the greatest common factor 72255 and 72261 is 3.

Also check out the Least Common Multiple of 72255 and 72261