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Forum: Cunningham Tables 2014-08-27, 10:24
Replies: 379
Sticky: 2- table
Views: 79,668
Posted By Rich
Mersenne Factorization Factory paper...

Mersenne Factorization Factory paper http://eprint.iacr.org/2014/653.pdf

Mentions the factorisation of 2^n-1 where n is in ...
Forum: Math 2014-08-12, 00:41
Replies: 5
Views: 1,983
Posted By Rich
Sorry, I must be confused because n = 601 * 1801...

Sorry, I must be confused because n = 601 * 1801 * 6151 = 6657848551 seems to work. This is the same order of magnitude as the other solution quoted so it's unlikely to have been missed. It's less...
Forum: Cunningham Tables 2014-08-09, 01:03
Replies: 379
Sticky: 2- table
Views: 79,668
Posted By Rich
So we're talking about the following results from...

So we're talking about the following results from the previous link.

2,1081- c251...
Forum: Factoring 2014-04-29, 10:45
Replies: 2
Views: 702
Posted By Rich
Which unfactorable natural composite has had the most ECM?

I want to generate a short list of composite numbers ordered by the expected lower bound on the smallest factor based on ECM factoring effort.

A composite numbers which is the product of generated...
Forum: Factoring 2013-12-02, 18:22
Replies: 37
Views: 6,587
Posted By Rich
In order to avoid any uncertainty, I would be...

In order to avoid any uncertainty, I would be grateful if Bob would state definitively whether his post with picture of the stagily outraged stereotypical German soldier and the animated "Ban" button...
Forum: Factoring 2013-12-02, 17:46
Replies: 37
Views: 6,587
Posted By Rich
I'm getting mixed messages about whether you are...

I'm getting mixed messages about whether you are actually serious and I wish to seek clarification of your position before replying further....

Richard
Forum: Factoring 2013-12-02, 13:54
Replies: 37
Views: 6,587
Posted By Rich
It is of course possible that the factorization...

It is of course possible that the factorization was done by SNFS and then the orders of lots of elliptic curves for various sigmas were calculated and trial factored until an appropriately composite...
Forum: Puzzles 2011-12-23, 16:07
Replies: 2
Views: 1,194
Posted By Rich
wblipp the link is properly broken now. I don't...

wblipp the link is properly broken now. I don't know whether it was before. Please fix as I can't
Forum: Puzzles 2011-12-21, 05:09
Replies: 2
Views: 1,194
Posted By Rich
FNV hash challenges

I'd like to introduce you to the FNV hash http://http://isthe.com/chongo/tech/comp/fnv/ (http//isthe.com/chongo/tech/comp/fnv/)
It's a non-secure fast hashing function which comes in 32 bit, 64 bit,...
Forum: Math 2011-04-20, 16:34
Replies: 1
Views: 701
Posted By Rich
I have the book. Ask away. Rich

I have the book. Ask away.

Rich
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