What is the Greatest Common Factor of 72195 and 72207?

Greatest common factor (GCF) of 72195 and 72207 is 3.

GCF(72195,72207) = 3

We will now calculate the prime factors of 72195 and 72207, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72195 and 72207.

How to find the GCF of 72195 and 72207?

We will first find the prime factorization of 72195 and 72207. After we will calculate the factors of 72195 and 72207 and find the biggest common factor number .

Step-1: Prime Factorization of 72195

Prime factors of 72195 are 3, 5, 4813. Prime factorization of 72195 in exponential form is:

72195 = 3¹ × 5¹ × 4813¹

Step-2: Prime Factorization of 72207

Prime factors of 72207 are 3, 71, 113. Prime factorization of 72207 in exponential form is:

72207 = 3² × 71¹ × 113¹

Step-3: Factors of 72195

List of positive integer factors of 72195 that divides 72195 without a remainder.

1, 3, 5, 15, 4813, 14439, 24065

Step-4: Factors of 72207

List of positive integer factors of 72207 that divides 72195 without a remainder.

1, 3, 9, 71, 113, 213, 339, 639, 1017, 8023, 24069

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72195 and 72207. The biggest common factor number is the GCF number.
So the greatest common factor 72195 and 72207 is 3.

Also check out the Least Common Multiple of 72195 and 72207