Allen responded to my message.... (I trimmed the quotes) -------- Original Message -------- Subject: Re: [Prime] Prime sequence formula Date: Fri, 29 Sep 2006 04:14:20 +0000 From: Allen Poapst <[EMAIL PROTECTED]> To: [EMAIL PROTECTED]
John R Pierce <[EMAIL PROTECTED]> wrote... > >you sent your message to a email list, rather than an individual... > >the GIMPS project is searching for very(!) large prime numbers, the latest >one they found is 2^^32582657 -1, which is 9.8 million decimal digits long. > Details on this project are here, http://mersenne.org/ > >a decimal representation of this number is here -> >http://www.mersenne.org/prime10.txt (note this is a ~ 10 megabyte file, it >will take a while to download) > >if you could plug that into your formula, you say it would tell us which >prime number it is ? You might have difficulty with the size of the >numbers, traditional techniques for multiprecision arithmetic tend to break >down when you're dealing with 4 megabyte wide numbers. > >BTW, the US$100,000 prize money was put up by the EFF (Electronic Frontiers >Foundation), and its for discovering the first prime number over 10 million >digits long. See http://www.eff.org/awards/coop.php I wish I could put that number into my program which simulates my forumla and find its position, but in order for my formula to work I need to know the position of EVERY prime number which is smaller than the square root of the prime which you want to find, in order to calculate its position correctly. So it is impractical for my program to find the position for huge numbers like that one. Though thank you for responding. _______________________________________________ Prime mailing list [email protected] http://hogranch.com/mailman/listinfo/prime
