What is the Greatest Common Factor of 19813 and 19830?

Greatest common factor (GCF) of 19813 and 19830 is 1.

GCF(19813,19830) = 1

We will now calculate the prime factors of 19813 and 19830, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19813 and 19830.

How to find the GCF of 19813 and 19830?

We will first find the prime factorization of 19813 and 19830. After we will calculate the factors of 19813 and 19830 and find the biggest common factor number .

Step-1: Prime Factorization of 19813

Prime factors of 19813 are 19813. Prime factorization of 19813 in exponential form is:

19813 = 19813¹

Step-2: Prime Factorization of 19830

Prime factors of 19830 are 2, 3, 5, 661. Prime factorization of 19830 in exponential form is:

19830 = 2¹ × 3¹ × 5¹ × 661¹

Step-3: Factors of 19813

List of positive integer factors of 19813 that divides 19813 without a remainder.

Step-4: Factors of 19830

List of positive integer factors of 19830 that divides 19813 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 661, 1322, 1983, 3305, 3966, 6610, 9915

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19813 and 19830. The biggest common factor number is the GCF number.
So the greatest common factor 19813 and 19830 is 1.

Also check out the Least Common Multiple of 19813 and 19830