What is the Greatest Common Factor of 28191 and 28200?

Greatest common factor (GCF) of 28191 and 28200 is 3.

GCF(28191,28200) = 3

We will now calculate the prime factors of 28191 and 28200, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28191 and 28200.

How to find the GCF of 28191 and 28200?

We will first find the prime factorization of 28191 and 28200. After we will calculate the factors of 28191 and 28200 and find the biggest common factor number .

Step-1: Prime Factorization of 28191

Prime factors of 28191 are 3, 9397. Prime factorization of 28191 in exponential form is:

28191 = 3¹ × 9397¹

Step-2: Prime Factorization of 28200

Prime factors of 28200 are 2, 3, 5, 47. Prime factorization of 28200 in exponential form is:

28200 = 2³ × 3¹ × 5² × 47¹

Step-3: Factors of 28191

List of positive integer factors of 28191 that divides 28191 without a remainder.

1, 3, 9397

Step-4: Factors of 28200

List of positive integer factors of 28200 that divides 28191 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 47, 50, 60, 75, 94, 100, 120, 141, 150, 188, 200, 235, 282, 300, 376, 470, 564, 600, 705, 940, 1128, 1175, 1410, 1880, 2350, 2820, 3525, 4700, 5640, 7050, 9400, 14100

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28191 and 28200. The biggest common factor number is the GCF number.
So the greatest common factor 28191 and 28200 is 3.

Also check out the Least Common Multiple of 28191 and 28200