What is the Greatest Common Factor of 18780 and 18800?

Greatest common factor (GCF) of 18780 and 18800 is 20.

GCF(18780,18800) = 20

We will now calculate the prime factors of 18780 and 18800, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18780 and 18800.

How to find the GCF of 18780 and 18800?

We will first find the prime factorization of 18780 and 18800. After we will calculate the factors of 18780 and 18800 and find the biggest common factor number .

Step-1: Prime Factorization of 18780

Prime factors of 18780 are 2, 3, 5, 313. Prime factorization of 18780 in exponential form is:

18780 = 2² × 3¹ × 5¹ × 313¹

Step-2: Prime Factorization of 18800

Prime factors of 18800 are 2, 5, 47. Prime factorization of 18800 in exponential form is:

18800 = 2⁴ × 5² × 47¹

Step-3: Factors of 18780

List of positive integer factors of 18780 that divides 18780 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1252, 1565, 1878, 3130, 3756, 4695, 6260, 9390

Step-4: Factors of 18800

List of positive integer factors of 18800 that divides 18780 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 752, 940, 1175, 1880, 2350, 3760, 4700, 9400

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18780 and 18800. The biggest common factor number is the GCF number.
So the greatest common factor 18780 and 18800 is 20.

Also check out the Least Common Multiple of 18780 and 18800