What is the Greatest Common Factor of 19827 and 19836?

Greatest common factor (GCF) of 19827 and 19836 is 9.

GCF(19827,19836) = 9

We will now calculate the prime factors of 19827 and 19836, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19827 and 19836.

How to find the GCF of 19827 and 19836?

We will first find the prime factorization of 19827 and 19836. After we will calculate the factors of 19827 and 19836 and find the biggest common factor number .

Step-1: Prime Factorization of 19827

Prime factors of 19827 are 3, 2203. Prime factorization of 19827 in exponential form is:

19827 = 3² × 2203¹

Step-2: Prime Factorization of 19836

Prime factors of 19836 are 2, 3, 19, 29. Prime factorization of 19836 in exponential form is:

19836 = 2² × 3² × 19¹ × 29¹

Step-3: Factors of 19827

List of positive integer factors of 19827 that divides 19827 without a remainder.

1, 3, 9, 2203, 6609

Step-4: Factors of 19836

List of positive integer factors of 19836 that divides 19827 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1044, 1102, 1653, 2204, 3306, 4959, 6612, 9918

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19827 and 19836. The biggest common factor number is the GCF number.
So the greatest common factor 19827 and 19836 is 9.

Also check out the Least Common Multiple of 19827 and 19836