Molly,

These numbers are called repunits. I suggest a web search of repunit or
repunits might be useful for you.

Ian

On 24/02/2008, Molly Dixon <[EMAIL PROTECTED]> wrote:
>
> i have figured out that most numbers with all 1s for digits are prime with
> this one exception if the number has 3 6 9 12 15 and all other numbers that
> have 3 as a factor   for the amount if digits in the number. There for 10
> million 1s would be prime.
>
>
>
>
>
>
>
>
>       
> ____________________________________________________________________________________
> Looking for last minute shopping deals?
> Find them fast with Yahoo! Search.
> http://tools.search.yahoo.com/newsearch/category.php?category=shopping
> _______________________________________________
> Prime mailing list
> [email protected]
> http://hogranch.com/mailman/listinfo/prime
>



-- 
Ian W Halliday, BA Hons, SA Fin, MIMIS, ATMG, CL
+44 772 546 2965 (GMT)
_______________________________________________
Prime mailing list
[email protected]
http://hogranch.com/mailman/listinfo/prime

Reply via email to