What is the Greatest Common Factor of 16820 and 16836?

Greatest common factor (GCF) of 16820 and 16836 is 4.

GCF(16820,16836) = 4

We will now calculate the prime factors of 16820 and 16836, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16820 and 16836.

How to find the GCF of 16820 and 16836?

We will first find the prime factorization of 16820 and 16836. After we will calculate the factors of 16820 and 16836 and find the biggest common factor number .

Step-1: Prime Factorization of 16820

Prime factors of 16820 are 2, 5, 29. Prime factorization of 16820 in exponential form is:

16820 = 2² × 5¹ × 29²

Step-2: Prime Factorization of 16836

Prime factors of 16836 are 2, 3, 23, 61. Prime factorization of 16836 in exponential form is:

16836 = 2² × 3¹ × 23¹ × 61¹

Step-3: Factors of 16820

List of positive integer factors of 16820 that divides 16820 without a remainder.

1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 3364, 4205, 8410

Step-4: Factors of 16836

List of positive integer factors of 16836 that divides 16820 without a remainder.

1, 2, 3, 4, 6, 12, 23, 46, 61, 69, 92, 122, 138, 183, 244, 276, 366, 732, 1403, 2806, 4209, 5612, 8418

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16820 and 16836. The biggest common factor number is the GCF number.
So the greatest common factor 16820 and 16836 is 4.

Also check out the Least Common Multiple of 16820 and 16836