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10001, 100010001, .... (Posted on 2003-05-23) Difficulty: 3 of 5
Consider the following sequence:

10001, 100010001, 1000100010001, 10001000100010001, 100010001000100010001,....

Show that none of them are prime numbers.

See The Solution Submitted by Fernando    
Rating: 3.3333 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: a twist, perhaps? [TYPOS] | Comment 5 of 12 |
(In reply to a twist, perhaps? by DJ)

Anytime there is an underscore in my solution, as in 2i_2, it is supposed to be a plus sign [2i+2]
  Posted by DJ on 2003-05-23 20:24:46

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