What is the Greatest Common Factor of 72215 and 72228?

Greatest common factor (GCF) of 72215 and 72228 is 13.

GCF(72215,72228) = 13

We will now calculate the prime factors of 72215 and 72228, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72215 and 72228.

How to find the GCF of 72215 and 72228?

We will first find the prime factorization of 72215 and 72228. After we will calculate the factors of 72215 and 72228 and find the biggest common factor number .

Step-1: Prime Factorization of 72215

Prime factors of 72215 are 5, 11, 13, 101. Prime factorization of 72215 in exponential form is:

72215 = 5¹ × 11¹ × 13¹ × 101¹

Step-2: Prime Factorization of 72228

Prime factors of 72228 are 2, 3, 13, 463. Prime factorization of 72228 in exponential form is:

72228 = 2² × 3¹ × 13¹ × 463¹

Step-3: Factors of 72215

List of positive integer factors of 72215 that divides 72215 without a remainder.

1, 5, 11, 13, 55, 65, 101, 143, 505, 715, 1111, 1313, 5555, 6565, 14443

Step-4: Factors of 72228

List of positive integer factors of 72228 that divides 72215 without a remainder.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 463, 926, 1389, 1852, 2778, 5556, 6019, 12038, 18057, 24076, 36114

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72215 and 72228. The biggest common factor number is the GCF number.
So the greatest common factor 72215 and 72228 is 13.

Also check out the Least Common Multiple of 72215 and 72228