What is the Greatest Common Factor of 19821 and 19831?

Greatest common factor (GCF) of 19821 and 19831 is 1.

GCF(19821,19831) = 1

We will now calculate the prime factors of 19821 and 19831, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19821 and 19831.

How to find the GCF of 19821 and 19831?

We will first find the prime factorization of 19821 and 19831. After we will calculate the factors of 19821 and 19831 and find the biggest common factor number .

Step-1: Prime Factorization of 19821

Prime factors of 19821 are 3, 6607. Prime factorization of 19821 in exponential form is:

19821 = 3¹ × 6607¹

Step-2: Prime Factorization of 19831

Prime factors of 19831 are 7, 2833. Prime factorization of 19831 in exponential form is:

19831 = 7¹ × 2833¹

Step-3: Factors of 19821

List of positive integer factors of 19821 that divides 19821 without a remainder.

1, 3, 6607

Step-4: Factors of 19831

List of positive integer factors of 19831 that divides 19821 without a remainder.

1, 7, 2833

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19821 and 19831. The biggest common factor number is the GCF number.
So the greatest common factor 19821 and 19831 is 1.

Also check out the Least Common Multiple of 19821 and 19831