What is the Greatest Common Factor of 28275 and 28291?

Greatest common factor (GCF) of 28275 and 28291 is 1.

GCF(28275,28291) = 1

We will now calculate the prime factors of 28275 and 28291, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28275 and 28291.

How to find the GCF of 28275 and 28291?

We will first find the prime factorization of 28275 and 28291. After we will calculate the factors of 28275 and 28291 and find the biggest common factor number .

Step-1: Prime Factorization of 28275

Prime factors of 28275 are 3, 5, 13, 29. Prime factorization of 28275 in exponential form is:

28275 = 3¹ × 5² × 13¹ × 29¹

Step-2: Prime Factorization of 28291

Prime factors of 28291 are 19, 1489. Prime factorization of 28291 in exponential form is:

28291 = 19¹ × 1489¹

Step-3: Factors of 28275

List of positive integer factors of 28275 that divides 28275 without a remainder.

1, 3, 5, 13, 15, 25, 29, 39, 65, 75, 87, 145, 195, 325, 377, 435, 725, 975, 1131, 1885, 2175, 5655, 9425

Step-4: Factors of 28291

List of positive integer factors of 28291 that divides 28275 without a remainder.

1, 19, 1489

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28275 and 28291. The biggest common factor number is the GCF number.
So the greatest common factor 28275 and 28291 is 1.

Also check out the Least Common Multiple of 28275 and 28291