What is the Greatest Common Factor of 16515 and 16521?

Greatest common factor (GCF) of 16515 and 16521 is 3.

GCF(16515,16521) = 3

We will now calculate the prime factors of 16515 and 16521, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16515 and 16521.

How to find the GCF of 16515 and 16521?

We will first find the prime factorization of 16515 and 16521. After we will calculate the factors of 16515 and 16521 and find the biggest common factor number .

Step-1: Prime Factorization of 16515

Prime factors of 16515 are 3, 5, 367. Prime factorization of 16515 in exponential form is:

16515 = 3² × 5¹ × 367¹

Step-2: Prime Factorization of 16521

Prime factors of 16521 are 3, 5507. Prime factorization of 16521 in exponential form is:

16521 = 3¹ × 5507¹

Step-3: Factors of 16515

List of positive integer factors of 16515 that divides 16515 without a remainder.

1, 3, 5, 9, 15, 45, 367, 1101, 1835, 3303, 5505

Step-4: Factors of 16521

List of positive integer factors of 16521 that divides 16515 without a remainder.

1, 3, 5507

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16515 and 16521. The biggest common factor number is the GCF number.
So the greatest common factor 16515 and 16521 is 3.

Also check out the Least Common Multiple of 16515 and 16521