perplexus.info :: Numbers : Increase in number of factors.

Increase in number of factors. (Posted on 2010-10-05)

If n has 15 factors (1 and n inclusive ) and 2n has 20 factors. What is the number of factors of 4n?

Also, what can be the number of factors of 5n ?

See The Solution Submitted by Vishal Gupta

No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)

4n will have precisely 25 factors.

| Comment 4 of 5 |

Posted by K Sengupta on 2022-07-10 21:24:16

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info