A062802

[cino hilliard]

----Original Message Follows----
From: Bernardo Boncompagni <redgolpe at redgolpe.com>
To: Don Reble <djr at nk.ca>
CC: Seqfan <seqfan at ext.jussieu.fr>
Subject: Re: A062802
Date: Sat, 02 Sep 2006 14:44:24 +0200

Don Reble dice:

>     I dispute the multidigit comment of A062802, since
>
>     48999999999999999999999999999999999999999999999999
>     99999999999999999999999999999999999999999999999999
>     99999999999999999999999999999999999999999999999999
>     99999999989999999999999999999999999999999999999999
>     99999999999999999999999999999999999999999999999999
>     99999999999999999999999999999999999999999999999999
>     9999999999999999999999999999999999
>
>     is a probable prime. Can anyone prove it?

>PRIMO certifies the above number as prime in about 20 seconds.


(18:12:43) gp > 
isprime(4899999999999999999999999999999999999999999999999999999
9999999999999999999999999999999999999999999999999999999999999999999999999999999
9999999999999999999999999899999999999999999999999999999999999999999999999999999
9999999999999999999999999999999999999999999999999999999999999999999999999999999
999999999999999999999999999999999999999999)
%67 = 1
(18:17:06) gp > ##
*   last result computed in 4mn, 6,063 ms.
Cino