0

I am looking for a chart that would show how many composite numbers there are under "n" broken out by how many factors they have. Has anyone seen a chart like this?

Example information I am looking for:

composite numbers under 20

total: 11

with 2 factors: 6

with 3 factors: 4

with 4 factors: 1

Joe
  • 534

1 Answers1

3

You need to learn to program the computer. It takes only a few minutes to get a computer to emit such a table. (Actually producing the table is instantaneous.)

I tabulated it up to $N=1000$ and put it here for you. (The table is too large for a SE post.) Notice line $20$, which reads $8\,6\,4\,1$, as you requested.

MJD
  • 65,394
  • 39
  • 298
  • 580
  • I don't know how to program a computer, could you run n=1,000,000? – Joe Mar 15 '15 at 22:38
  • Okay, it's here. The rightmost column is a catchall for numbers with 12 or more factors. You will need to use gzip or some equivalent to uncompress the file. – MJD Mar 15 '15 at 23:50