EFF Prize?
 

What can I do if I have found a 10,000,000 digit prime number without using this program? Can I still collect the $100,000? If so how?

Thanks.

This is discussed in this thread. [url]http://www.mersenneforum.org/showthread.php?s=&threadid=1503[/url] Basically, you must contact EFF yourself to claim the prize.

Here are EFF's rules for claiming the prize:

[url]http://www.eff.org/awards/award-prime-rules.html[/url]

You must contact them directly.

EFF Prize?
 

Why is EFF giving $100,000 (not that I'm complaining ;) ) to whoever finds a 10,000,000 digit prime number? What good is it to them to have a higher prime?


Thank you in advance
Yours truly,
Still on first exponent

They support the freedom to search for primes. The money was from an anonymous donor.

It is like the X prize and many other historic prizes. It provides a spur toward inovation. People may do something anyway, but provide a prize or target, and they will strive to win it. More money is being spent to win the X Prize than they will give away.

Is the EFF award still available?
 

Old links don't seem to work, and searching on their site I can't seem to find any mention of the n-digit prime discovery awards.

[url]http://www.eff.org/awards/coop.html[/url]

Thanks George - I keep losing that page.

Still no winner?
 

I looked at the "Top Producer" table and saw that there were hundred's of thousands of numbers tested. The table didn't give info on how many of the exponents tested were 10 million digit or more, but I would guess that many of the faster CPUs would be testing for a 10 million digit prime, so there would be tests of well over 100,000 10 million digit prime number candidates.

When I'm assigned a 10 million digit prime candidate to test, I get a msg that says the chances of it being prime are around 1 in 250,000.

I'm not a mathemetician, but using what little I remember from college, if the odds really are 1/250000 to find a 10 million digit prime, then the chances are about 1/3 that at least one would have been found if 100,000 candidates are tested. If 200,000 candidates are tested, it's about a 55% chance. For 300,000 candidates, about a 70% chance. If I couple the number of 10 million digit numbers tested here (I don't know this number, but I would imagine it's at least 150,000) with the number of exponents tested solo hunters (I don't know this number either, but would guess at least as many as here, so at least 150,000 unique numbers (e.g., no duplicates with mersenne)), it indicates a 70% chance an exponent should have been found.

Admittedly, I'm pulling numbers out of my butt here, but would be curious if anyone has thoughts on this topic. Thanks!

[QUOTE]The table didn't give info on how many of the exponents tested were 10 million digit or more, but I would guess that many of the faster CPUs would be testing for a 10 million digit prime,[/QUOTE]

See [url]http://www.mersenne.org/status.htm[/url]

[QUOTE]...so there would be tests of well over 100,000 10 million digit prime number candidates....

...If I couple the number of 10 million digit numbers tested here (I don't know this number, but I would imagine it's at least 150,000) ....[/quote]

As you can see on the above site, there are just over 15000 completed tests of 10M digit numbers.

[quote]
...the number of exponents tested solo hunters (I don't know this number either, but would guess at least as many as here, so at least 150,000 unique numbers [/QUOTE]

I don't know this number either, but i would be surprised if it's more than 15