What is the Greatest Common Factor of 17840 and 17860?

Greatest common factor (GCF) of 17840 and 17860 is 20.

GCF(17840,17860) = 20

We will now calculate the prime factors of 17840 and 17860, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 17840 and 17860.

How to find the GCF of 17840 and 17860?

We will first find the prime factorization of 17840 and 17860. After we will calculate the factors of 17840 and 17860 and find the biggest common factor number .

Step-1: Prime Factorization of 17840

Prime factors of 17840 are 2, 5, 223. Prime factorization of 17840 in exponential form is:

17840 = 2⁴ × 5¹ × 223¹

Step-2: Prime Factorization of 17860

Prime factors of 17860 are 2, 5, 19, 47. Prime factorization of 17860 in exponential form is:

17860 = 2² × 5¹ × 19¹ × 47¹

Step-3: Factors of 17840

List of positive integer factors of 17840 that divides 17840 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 8920

Step-4: Factors of 17860

List of positive integer factors of 17860 that divides 17840 without a remainder.

1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 4465, 8930

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 17840 and 17860. The biggest common factor number is the GCF number.
So the greatest common factor 17840 and 17860 is 20.

Also check out the Least Common Multiple of 17840 and 17860