What is the Greatest Common Factor of 17666 and 17686?

Greatest common factor (GCF) of 17666 and 17686 is 2.

GCF(17666,17686) = 2

We will now calculate the prime factors of 17666 and 17686, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17666 and 17686.

How to find the GCF of 17666 and 17686?

We will first find the prime factorization of 17666 and 17686. After we will calculate the factors of 17666 and 17686 and find the biggest common factor number .

Step-1: Prime Factorization of 17666

Prime factors of 17666 are 2, 11, 73. Prime factorization of 17666 in exponential form is:

17666 = 2¹ × 11² × 73¹

Step-2: Prime Factorization of 17686

Prime factors of 17686 are 2, 37, 239. Prime factorization of 17686 in exponential form is:

17686 = 2¹ × 37¹ × 239¹

Step-3: Factors of 17666

List of positive integer factors of 17666 that divides 17666 without a remainder.

1, 2, 11, 22, 73, 121, 146, 242, 803, 1606, 8833

Step-4: Factors of 17686

List of positive integer factors of 17686 that divides 17666 without a remainder.

1, 2, 37, 74, 239, 478, 8843

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17666 and 17686. The biggest common factor number is the GCF number.
So the greatest common factor 17666 and 17686 is 2.

Also check out the Least Common Multiple of 17666 and 17686