What is the Greatest Common Factor of 16290 and 16305?

Greatest common factor (GCF) of 16290 and 16305 is 15.

GCF(16290,16305) = 15

We will now calculate the prime factors of 16290 and 16305, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16290 and 16305.

How to find the GCF of 16290 and 16305?

We will first find the prime factorization of 16290 and 16305. After we will calculate the factors of 16290 and 16305 and find the biggest common factor number .

Step-1: Prime Factorization of 16290

Prime factors of 16290 are 2, 3, 5, 181. Prime factorization of 16290 in exponential form is:

16290 = 2¹ × 3² × 5¹ × 181¹

Step-2: Prime Factorization of 16305

Prime factors of 16305 are 3, 5, 1087. Prime factorization of 16305 in exponential form is:

16305 = 3¹ × 5¹ × 1087¹

Step-3: Factors of 16290

List of positive integer factors of 16290 that divides 16290 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 181, 362, 543, 905, 1086, 1629, 1810, 2715, 3258, 5430, 8145

Step-4: Factors of 16305

List of positive integer factors of 16305 that divides 16290 without a remainder.

1, 3, 5, 15, 1087, 3261, 5435

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16290 and 16305. The biggest common factor number is the GCF number.
So the greatest common factor 16290 and 16305 is 15.

Also check out the Least Common Multiple of 16290 and 16305