perplexus.info :: Numbers : These are no fractions, are they?

Home > Numbers

These are no fractions, are they? (Posted on 2006-09-05)

You are probably quite certain that the following numbers are irrational. But can you prove it?

a = 0.149162536496481...

b = 0.2357111317192329...

c = 0.1248163264128256...

See The Solution Submitted by JLo

Rating: 2.5000 (2 votes)

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

One down, two to go

| Comment 1 of 16

Obviously, a is

266060029582368375943402260274 / 1783692043803805672104863371093
= .14916253649648123874...

and therefore not irrational.

As you see, I got even some of the digits right which you didn't even give in the problem, so it has to be correct.

;-)

Posted by vswitchs on 2006-09-05 14:35:23

Please log in:

Login:
Password:
Remember me:

Sign up! \| Forgot password

Search:

Search body:

Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info