What is the Greatest Common Factor of 15275 and 15280?

Greatest common factor (GCF) of 15275 and 15280 is 5.

GCF(15275,15280) = 5

We will now calculate the prime factors of 15275 and 15280, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15275 and 15280.

How to find the GCF of 15275 and 15280?

We will first find the prime factorization of 15275 and 15280. After we will calculate the factors of 15275 and 15280 and find the biggest common factor number .

Step-1: Prime Factorization of 15275

Prime factors of 15275 are 5, 13, 47. Prime factorization of 15275 in exponential form is:

15275 = 5² × 13¹ × 47¹

Step-2: Prime Factorization of 15280

Prime factors of 15280 are 2, 5, 191. Prime factorization of 15280 in exponential form is:

15280 = 2⁴ × 5¹ × 191¹

Step-3: Factors of 15275

List of positive integer factors of 15275 that divides 15275 without a remainder.

1, 5, 13, 25, 47, 65, 235, 325, 611, 1175, 3055

Step-4: Factors of 15280

List of positive integer factors of 15280 that divides 15275 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1528, 1910, 3056, 3820, 7640

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15275 and 15280. The biggest common factor number is the GCF number.
So the greatest common factor 15275 and 15280 is 5.

Also check out the Least Common Multiple of 15275 and 15280