What is the Greatest Common Factor of 10821 and 10830?

Greatest common factor (GCF) of 10821 and 10830 is 3.

GCF(10821,10830) = 3

We will now calculate the prime factors of 10821 and 10830, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 10821 and 10830.

How to find the GCF of 10821 and 10830?

We will first find the prime factorization of 10821 and 10830. After we will calculate the factors of 10821 and 10830 and find the biggest common factor number .

Step-1: Prime Factorization of 10821

Prime factors of 10821 are 3, 3607. Prime factorization of 10821 in exponential form is:

10821 = 3¹ × 3607¹

Step-2: Prime Factorization of 10830

Prime factors of 10830 are 2, 3, 5, 19. Prime factorization of 10830 in exponential form is:

10830 = 2¹ × 3¹ × 5¹ × 19²

Step-3: Factors of 10821

List of positive integer factors of 10821 that divides 10821 without a remainder.

1, 3, 3607

Step-4: Factors of 10830

List of positive integer factors of 10830 that divides 10821 without a remainder.

1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 361, 570, 722, 1083, 1805, 2166, 3610, 5415

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 10821 and 10830. The biggest common factor number is the GCF number.
So the greatest common factor 10821 and 10830 is 3.

Also check out the Least Common Multiple of 10821 and 10830