Highly Composite Number

A highly composite number is a positive integer that has more divisors than any smaller positive integer. If d(n) denotes the number of divisors of n, a positive integer N is highly composite when d(N) is greater than d(n) for every n less than N. For example, 6 is highly composite because it has 4 divisors, more than any of 1 through 5. The first two highly composite numbers, 1 and 2, are not themselves composite numbers, though every highly composite number after them is. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/