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Old 2015-11-08, 00:20   #122
henryzz
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Quote:
Originally Posted by schickel View Post
I think I started to answer this earlier but got sidetracked or something. The only extant backup was a torrent that was seeded that consisted of a straight backup of just the number table, but none of the front-end code that make it worlds more useful than just a bunch of numbers thrown in a pile. I'm sure you could find the messages covering this topic near the bottom of the archive in the sub-forum. It was at least a couple of years ago....
Rings a bell. Can't find it now though.
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Old 2016-01-16, 20:41   #123
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Tens of thousands of very small PRPs (some under 20 digits) are piling up. FactorDB seems to be proving them, but very slowly (under 1/sec).
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Old 2016-01-23, 20:03   #124
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Could you please increase the DB number size limit to >75 megabits, or give me a workaround for it? Right now the limit is 62 megabits, and I'm unable to add M74207281 to it, no matter how I express it. That's never happened with any other Mersenne Prime. Eventually, you'll have to remove that size limit altogether, because bigger primes will be found in the future, and I don't want anyone to be prevented from adding the current record prime.

Last fiddled with by Stargate38 on 2016-01-23 at 20:06 Reason: explanation
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Old 2016-02-15, 19:52   #125
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Anyone know how long the DB will be down? It's been saying "Creating backup, offline for ~1 hour" for the past 3 hours.
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Old 2016-02-15, 20:03   #126
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It's back now.
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Old 2016-02-15, 20:35   #127
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Finally found a way to add M74207281 to the DB, but I had to add it as M37103641*(2^37103641)-1 (2*M74207281) and use "Report Factors" to add the 2 in (WARNING: Takes 26 seconds to come up).

Link: http://www.factordb.com/index.php?id...00000823570581

Last fiddled with by Stargate38 on 2016-02-15 at 20:48
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Old 2016-02-16, 07:16   #128
Dubslow
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Quote:
Originally Posted by Stargate38 View Post
Finally found a way to add M74207281 to the DB, but I had to add it as M37103641*(2^37103641)-1 (2*M74207281) and use "Report Factors" to add the 2 in (WARNING: Takes 26 seconds to come up).

Link: http://www.factordb.com/index.php?id...00000823570581
Did you ever wonder that the extreme difficulty of the matter might mean that it shouldn't be done?
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Old 2016-02-16, 09:08   #129
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Quote:
Originally Posted by Dubslow View Post
Did you ever wonder that the extreme difficulty of the matter might mean that it shouldn't be done?
Don't do it if it's difficult, really?
How dare you say that in THIS forum?
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Old 2016-02-16, 10:47   #130
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Quote:
Originally Posted by Antonio View Post
Don't do it if it's difficult, really?
How dare you say that in THIS forum?
Merely suggesting it should be considered. And after all, there's a difference between difficult by human design and difficult by nature...

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Old 2016-02-16, 11:03   #131
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Quote:
Originally Posted by Dubslow View Post
difficult by human design
Or, more likely, difficult because of human design (failings).
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Old 2016-06-02, 07:35   #132
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PRP 392^411*11+1 should be easy to prove by N-1. But factordb thinks 392^411*11 is 11*19 so N-1 is only 0.112% factored.

This probably needs Syd to delete 392^411*11 and add it again.

Chris
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