Highly Composite Numbers

A highly composite number is one in which all natural numbers less than it contain less factors than the original number.

For example, 6 is a highly composite number. 1 has 1 factor. 2 has 2 factors, 3 has 2 factors, 4 has 3 factors, 5 has 2 factors, and 6 has 4 factors. 4 was the largest number, thus resulting in a highly composite number.