What is the Greatest Common Factor of 16557 and 16566?

Greatest common factor (GCF) of 16557 and 16566 is 3.

GCF(16557,16566) = 3

We will now calculate the prime factors of 16557 and 16566, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16557 and 16566.

How to find the GCF of 16557 and 16566?

We will first find the prime factorization of 16557 and 16566. After we will calculate the factors of 16557 and 16566 and find the biggest common factor number .

Step-1: Prime Factorization of 16557

Prime factors of 16557 are 3, 5519. Prime factorization of 16557 in exponential form is:

16557 = 3¹ × 5519¹

Step-2: Prime Factorization of 16566

Prime factors of 16566 are 2, 3, 11, 251. Prime factorization of 16566 in exponential form is:

16566 = 2¹ × 3¹ × 11¹ × 251¹

Step-3: Factors of 16557

List of positive integer factors of 16557 that divides 16557 without a remainder.

1, 3, 5519

Step-4: Factors of 16566

List of positive integer factors of 16566 that divides 16557 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66, 251, 502, 753, 1506, 2761, 5522, 8283

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16557 and 16566. The biggest common factor number is the GCF number.
So the greatest common factor 16557 and 16566 is 3.

Also check out the Least Common Multiple of 16557 and 16566