What is the Greatest Common Factor of 16686 and 16690?

Greatest common factor (GCF) of 16686 and 16690 is 2.

GCF(16686,16690) = 2

We will now calculate the prime factors of 16686 and 16690, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 16686 and 16690.

How to find the GCF of 16686 and 16690?

We will first find the prime factorization of 16686 and 16690. After we will calculate the factors of 16686 and 16690 and find the biggest common factor number .

Step-1: Prime Factorization of 16686

Prime factors of 16686 are 2, 3, 103. Prime factorization of 16686 in exponential form is:

16686 = 2¹ × 3⁴ × 103¹

Step-2: Prime Factorization of 16690

Prime factors of 16690 are 2, 5, 1669. Prime factorization of 16690 in exponential form is:

16690 = 2¹ × 5¹ × 1669¹

Step-3: Factors of 16686

List of positive integer factors of 16686 that divides 16686 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 81, 103, 162, 206, 309, 618, 927, 1854, 2781, 5562, 8343

Step-4: Factors of 16690

List of positive integer factors of 16690 that divides 16686 without a remainder.

1, 2, 5, 10, 1669, 3338, 8345

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 16686 and 16690. The biggest common factor number is the GCF number.
So the greatest common factor 16686 and 16690 is 2.

Also check out the Least Common Multiple of 16686 and 16690