What is the Greatest Common Factor of 18020 and 18040?

Greatest common factor (GCF) of 18020 and 18040 is 20.

GCF(18020,18040) = 20

We will now calculate the prime factors of 18020 and 18040, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18020 and 18040.

How to find the GCF of 18020 and 18040?

We will first find the prime factorization of 18020 and 18040. After we will calculate the factors of 18020 and 18040 and find the biggest common factor number .

Step-1: Prime Factorization of 18020

Prime factors of 18020 are 2, 5, 17, 53. Prime factorization of 18020 in exponential form is:

18020 = 2² × 5¹ × 17¹ × 53¹

Step-2: Prime Factorization of 18040

Prime factors of 18040 are 2, 5, 11, 41. Prime factorization of 18040 in exponential form is:

18040 = 2³ × 5¹ × 11¹ × 41¹

Step-3: Factors of 18020

List of positive integer factors of 18020 that divides 18020 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1060, 1802, 3604, 4505, 9010

Step-4: Factors of 18040

List of positive integer factors of 18040 that divides 18020 without a remainder.

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 110, 164, 205, 220, 328, 410, 440, 451, 820, 902, 1640, 1804, 2255, 3608, 4510, 9020

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18020 and 18040. The biggest common factor number is the GCF number.
So the greatest common factor 18020 and 18040 is 20.

Also check out the Least Common Multiple of 18020 and 18040