What is the Greatest Common Factor of 18619 and 18630?

Greatest common factor (GCF) of 18619 and 18630 is 1.

GCF(18619,18630) = 1

We will now calculate the prime factors of 18619 and 18630, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18619 and 18630.

How to find the GCF of 18619 and 18630?

We will first find the prime factorization of 18619 and 18630. After we will calculate the factors of 18619 and 18630 and find the biggest common factor number .

Step-1: Prime Factorization of 18619

Prime factors of 18619 are 43, 433. Prime factorization of 18619 in exponential form is:

18619 = 43¹ × 433¹

Step-2: Prime Factorization of 18630

Prime factors of 18630 are 2, 3, 5, 23. Prime factorization of 18630 in exponential form is:

18630 = 2¹ × 3⁴ × 5¹ × 23¹

Step-3: Factors of 18619

List of positive integer factors of 18619 that divides 18619 without a remainder.

1, 43, 433

Step-4: Factors of 18630

List of positive integer factors of 18630 that divides 18619 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 270, 345, 405, 414, 621, 690, 810, 1035, 1242, 1863, 2070, 3105, 3726, 6210, 9315

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18619 and 18630. The biggest common factor number is the GCF number.
So the greatest common factor 18619 and 18630 is 1.

Also check out the Least Common Multiple of 18619 and 18630