What is the Greatest Common Factor of 18786 and 18790?

Greatest common factor (GCF) of 18786 and 18790 is 2.

GCF(18786,18790) = 2

We will now calculate the prime factors of 18786 and 18790, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18786 and 18790.

How to find the GCF of 18786 and 18790?

We will first find the prime factorization of 18786 and 18790. After we will calculate the factors of 18786 and 18790 and find the biggest common factor number .

Step-1: Prime Factorization of 18786

Prime factors of 18786 are 2, 3, 31, 101. Prime factorization of 18786 in exponential form is:

18786 = 2¹ × 3¹ × 31¹ × 101¹

Step-2: Prime Factorization of 18790

Prime factors of 18790 are 2, 5, 1879. Prime factorization of 18790 in exponential form is:

18790 = 2¹ × 5¹ × 1879¹

Step-3: Factors of 18786

List of positive integer factors of 18786 that divides 18786 without a remainder.

1, 2, 3, 6, 31, 62, 93, 101, 186, 202, 303, 606, 3131, 6262, 9393

Step-4: Factors of 18790

List of positive integer factors of 18790 that divides 18786 without a remainder.

1, 2, 5, 10, 1879, 3758, 9395

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18786 and 18790. The biggest common factor number is the GCF number.
So the greatest common factor 18786 and 18790 is 2.

Also check out the Least Common Multiple of 18786 and 18790