What is the Greatest Common Factor of 16203 and 16218?

Greatest common factor (GCF) of 16203 and 16218 is 3.

GCF(16203,16218) = 3

We will now calculate the prime factors of 16203 and 16218, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16203 and 16218.

How to find the GCF of 16203 and 16218?

We will first find the prime factorization of 16203 and 16218. After we will calculate the factors of 16203 and 16218 and find the biggest common factor number .

Step-1: Prime Factorization of 16203

Prime factors of 16203 are 3, 11, 491. Prime factorization of 16203 in exponential form is:

16203 = 3¹ × 11¹ × 491¹

Step-2: Prime Factorization of 16218

Prime factors of 16218 are 2, 3, 17, 53. Prime factorization of 16218 in exponential form is:

16218 = 2¹ × 3² × 17¹ × 53¹

Step-3: Factors of 16203

List of positive integer factors of 16203 that divides 16203 without a remainder.

1, 3, 11, 33, 491, 1473, 5401

Step-4: Factors of 16218

List of positive integer factors of 16218 that divides 16203 without a remainder.

1, 2, 3, 6, 9, 17, 18, 34, 51, 53, 102, 106, 153, 159, 306, 318, 477, 901, 954, 1802, 2703, 5406, 8109

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16203 and 16218. The biggest common factor number is the GCF number.
So the greatest common factor 16203 and 16218 is 3.

Also check out the Least Common Multiple of 16203 and 16218