455

This number is a composite.

Just showing those entries submitted by 'Honaker': (Click here to show all)

The average number of distinct prime factors for positive integers up to 455 is an integer. For example, the sum of all omega(n) values up to 455 = 910, and 910/455 = 2. The record-breaking sequence of mean omega values up to n that are integers begins 1, 6, 455, 8167302, ... . Can you find the next term? [Honaker]