What is the Greatest Common Factor of 18500 and 18520?

Greatest common factor (GCF) of 18500 and 18520 is 20.

GCF(18500,18520) = 20

We will now calculate the prime factors of 18500 and 18520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18500 and 18520.

How to find the GCF of 18500 and 18520?

We will first find the prime factorization of 18500 and 18520. After we will calculate the factors of 18500 and 18520 and find the biggest common factor number .

Step-1: Prime Factorization of 18500

Prime factors of 18500 are 2, 5, 37. Prime factorization of 18500 in exponential form is:

18500 = 2² × 5³ × 37¹

Step-2: Prime Factorization of 18520

Prime factors of 18520 are 2, 5, 463. Prime factorization of 18520 in exponential form is:

18520 = 2³ × 5¹ × 463¹

Step-3: Factors of 18500

List of positive integer factors of 18500 that divides 18500 without a remainder.

1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 185, 250, 370, 500, 740, 925, 1850, 3700, 4625, 9250

Step-4: Factors of 18520

List of positive integer factors of 18520 that divides 18500 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1852, 2315, 3704, 4630, 9260

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18500 and 18520. The biggest common factor number is the GCF number.
So the greatest common factor 18500 and 18520 is 20.

Also check out the Least Common Multiple of 18500 and 18520