What is the Greatest Common Factor of 18820 and 18836?

Greatest common factor (GCF) of 18820 and 18836 is 4.

GCF(18820,18836) = 4

We will now calculate the prime factors of 18820 and 18836, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18820 and 18836.

How to find the GCF of 18820 and 18836?

We will first find the prime factorization of 18820 and 18836. After we will calculate the factors of 18820 and 18836 and find the biggest common factor number .

Step-1: Prime Factorization of 18820

Prime factors of 18820 are 2, 5, 941. Prime factorization of 18820 in exponential form is:

18820 = 2² × 5¹ × 941¹

Step-2: Prime Factorization of 18836

Prime factors of 18836 are 2, 17, 277. Prime factorization of 18836 in exponential form is:

18836 = 2² × 17¹ × 277¹

Step-3: Factors of 18820

List of positive integer factors of 18820 that divides 18820 without a remainder.

1, 2, 4, 5, 10, 20, 941, 1882, 3764, 4705, 9410

Step-4: Factors of 18836

List of positive integer factors of 18836 that divides 18820 without a remainder.

1, 2, 4, 17, 34, 68, 277, 554, 1108, 4709, 9418

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18820 and 18836. The biggest common factor number is the GCF number.
So the greatest common factor 18820 and 18836 is 4.

Also check out the Least Common Multiple of 18820 and 18836