Douglas Twitchell

Ventriloquist, mathematician, science teacher, musician, painter, web designer,
software developer, Bible teacher, camp pastor, photographer...

Jack of All Trades?
  
 
 

142857 - Mathematical Tricks and Stunts

The number 142857 does some amazing tricks; if you multiply it by 2 you get 285714, which is the same digits, rotated 4 positions. If you multiply by 3 you get 428571 (shifted 5 places). And if you multiply it by 7, you get 999999. Interesting, no? In the space below, just type in a positive integer to find out what happens when you multiply 142857 by that number.

Type a Positive Integer  


In case you're interested, 142857 is not the only number that does such interesting stunts and tricks. It's not as much of an oddity as you might think. 142857 is the repeating decimal portion of one seventh (1/7 = .142857142857...).

Are there other fractions whose repeating decimal behaves the same way? You bet there are! But I'm not going to tell you what they are. You'll just have to find them for yourself.

An Article About 142857
 
  The Puzzler Sites
The Problem Site
Quote Puzzler
Tile Puzzler
The Puzzler Store
The Puzzler Blog

And More Sites
Glimpses of Eden
Fifteen Minutes of Fiction
Articles for Educators
Ask Doug
Virtu Software
Amateur-Hikers.com
Biblical Illuminations
Anti Spam Site
SEO Scam Watch
Jeorge the Dodo

On This Site
Word Scrambler
Heat Index Calculator
142857 Calculator
Happy Numbers
Hiking Calculator
Random Quotation
Word Scrambler

Privacy