What is the Greatest Common Factor of 18658 and 18670?

Greatest common factor (GCF) of 18658 and 18670 is 2.

GCF(18658,18670) = 2

We will now calculate the prime factors of 18658 and 18670, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18658 and 18670.

How to find the GCF of 18658 and 18670?

We will first find the prime factorization of 18658 and 18670. After we will calculate the factors of 18658 and 18670 and find the biggest common factor number .

Step-1: Prime Factorization of 18658

Prime factors of 18658 are 2, 19, 491. Prime factorization of 18658 in exponential form is:

18658 = 2¹ × 19¹ × 491¹

Step-2: Prime Factorization of 18670

Prime factors of 18670 are 2, 5, 1867. Prime factorization of 18670 in exponential form is:

18670 = 2¹ × 5¹ × 1867¹

Step-3: Factors of 18658

List of positive integer factors of 18658 that divides 18658 without a remainder.

1, 2, 19, 38, 491, 982, 9329

Step-4: Factors of 18670

List of positive integer factors of 18670 that divides 18658 without a remainder.

1, 2, 5, 10, 1867, 3734, 9335

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18658 and 18670. The biggest common factor number is the GCF number.
So the greatest common factor 18658 and 18670 is 2.

Also check out the Least Common Multiple of 18658 and 18670