What is the Greatest Common Factor of 18860 and 18880?

Greatest common factor (GCF) of 18860 and 18880 is 20.

GCF(18860,18880) = 20

We will now calculate the prime factors of 18860 and 18880, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18860 and 18880.

How to find the GCF of 18860 and 18880?

We will first find the prime factorization of 18860 and 18880. After we will calculate the factors of 18860 and 18880 and find the biggest common factor number .

Step-1: Prime Factorization of 18860

Prime factors of 18860 are 2, 5, 23, 41. Prime factorization of 18860 in exponential form is:

18860 = 2² × 5¹ × 23¹ × 41¹

Step-2: Prime Factorization of 18880

Prime factors of 18880 are 2, 5, 59. Prime factorization of 18880 in exponential form is:

18880 = 2⁶ × 5¹ × 59¹

Step-3: Factors of 18860

List of positive integer factors of 18860 that divides 18860 without a remainder.

1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 1886, 3772, 4715, 9430

Step-4: Factors of 18880

List of positive integer factors of 18880 that divides 18860 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 160, 236, 295, 320, 472, 590, 944, 1180, 1888, 2360, 3776, 4720, 9440

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18860 and 18880. The biggest common factor number is the GCF number.
So the greatest common factor 18860 and 18880 is 20.

Also check out the Least Common Multiple of 18860 and 18880