perplexus.info :: Numbers : 10001, 100010001, ....

10001, 100010001, .... (Posted on 2003-05-23)

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.)

hhmmmm...

| Comment 1 of 12

I don't know HOW to prove it yet, but they are not prime numbers because they appear to be products of prime numbers....

Posted by jude on 2003-05-23 12:03:15

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