What is the Greatest Common Factor of 28290 and 28309?

Greatest common factor (GCF) of 28290 and 28309 is 1.

GCF(28290,28309) = 1

We will now calculate the prime factors of 28290 and 28309, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28290 and 28309.

How to find the GCF of 28290 and 28309?

We will first find the prime factorization of 28290 and 28309. After we will calculate the factors of 28290 and 28309 and find the biggest common factor number .

Step-1: Prime Factorization of 28290

Prime factors of 28290 are 2, 3, 5, 23, 41. Prime factorization of 28290 in exponential form is:

28290 = 2¹ × 3¹ × 5¹ × 23¹ × 41¹

Step-2: Prime Factorization of 28309

Prime factors of 28309 are 28309. Prime factorization of 28309 in exponential form is:

28309 = 28309¹

Step-3: Factors of 28290

List of positive integer factors of 28290 that divides 28290 without a remainder.

1, 2, 3, 5, 6, 10, 15, 23, 30, 41, 46, 69, 82, 115, 123, 138, 205, 230, 246, 345, 410, 615, 690, 943, 1230, 1886, 2829, 4715, 5658, 9430, 14145

Step-4: Factors of 28309

List of positive integer factors of 28309 that divides 28290 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28290 and 28309. The biggest common factor number is the GCF number.
So the greatest common factor 28290 and 28309 is 1.

Also check out the Least Common Multiple of 28290 and 28309