What is the Greatest Common Factor of 13800 and 13815?

Greatest common factor (GCF) of 13800 and 13815 is 15.

GCF(13800,13815) = 15

We will now calculate the prime factors of 13800 and 13815, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 13800 and 13815.

How to find the GCF of 13800 and 13815?

We will first find the prime factorization of 13800 and 13815. After we will calculate the factors of 13800 and 13815 and find the biggest common factor number .

Step-1: Prime Factorization of 13800

Prime factors of 13800 are 2, 3, 5, 23. Prime factorization of 13800 in exponential form is:

13800 = 2³ × 3¹ × 5² × 23¹

Step-2: Prime Factorization of 13815

Prime factors of 13815 are 3, 5, 307. Prime factorization of 13815 in exponential form is:

13815 = 3² × 5¹ × 307¹

Step-3: Factors of 13800

List of positive integer factors of 13800 that divides 13800 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 25, 30, 40, 46, 50, 60, 69, 75, 92, 100, 115, 120, 138, 150, 184, 200, 230, 276, 300, 345, 460, 552, 575, 600, 690, 920, 1150, 1380, 1725, 2300, 2760, 3450, 4600, 6900

Step-4: Factors of 13815

List of positive integer factors of 13815 that divides 13800 without a remainder.

1, 3, 5, 9, 15, 45, 307, 921, 1535, 2763, 4605

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 13800 and 13815. The biggest common factor number is the GCF number.
So the greatest common factor 13800 and 13815 is 15.

Also check out the Least Common Multiple of 13800 and 13815