Factor it Out!
A number is called "special" when its value is equal to ten times the number of factors it has (all natural number factors). For example, 120 has 12 factors, so it is considered special. How many special numbers are there?
Details and Assumptions :
0 is not a special number.
Challenge: If you think there is a point when there are no more special numbers, prove it.
The answer is 2.
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
0 solutions
No explanations have been posted yet. Check back later!