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Search: Posts Made By: slandrum
Forum: And now for something completely different 2021-11-28, 22:45
Replies: 10
Views: 7,295
Posted By slandrum
So it looks like the project is examining the...

So it looks like the project is examining the sequence of digits in the decimal representation of the Mersenne primes, and looking for large prime subsequences from those digits.

ETA: The 3rd...
Forum: Miscellaneous Math 2021-11-28, 00:55
Replies: 428
Views: 39,590
Posted By slandrum
There's actually nothing at all interesting here....

There's actually nothing at all interesting here. Certs are assigned to fast and slow machines, just whatever machine comes up next gets it. I get cert assignments for lots of different accounts,...
Forum: Lounge 2021-11-27, 18:36
Replies: 45
Views: 2,349
Posted By slandrum
reds rosy embarrassed damask sanguine ...

reds

rosy embarrassed damask sanguine

rosy
Forum: Lounge 2021-11-27, 18:27
Replies: 2,118
Views: 109,066
Posted By slandrum
rivers rapacious ivy verdantly engulfs...

rivers

rapacious ivy verdantly engulfs receding structures

recede
Forum: Lounge 2021-11-27, 18:17
Replies: 328
Views: 44,638
Posted By slandrum
riddles recipes imply deduction, deception...

riddles

recipes imply deduction, deception leads experiments sideways

deceive
Forum: Lounge 2021-11-25, 20:09
Replies: 71
Views: 6,647
Posted By slandrum
sentient scientists explore new territory...

sentient

scientists explore new territory including exotic neutrino transmissions

neutrino
Forum: Data 2021-11-25, 04:09
Replies: 8
Views: 248
Posted By slandrum
Many small factors are listed for numbers w/o any...

Many small factors are listed for numbers w/o any TF or PM1 report. All that matters is that the factor is known, not how or even if it was reported.
Forum: Lone Mersenne Hunters 2021-11-24, 15:49
Replies: 1,985
Views: 270,787
Posted By slandrum
My first P-1 factor: UID: slandrum/BB2,...

My first P-1 factor:

UID: slandrum/BB2, M115047523 has a factor: 26766179697464143575646837913 (P-1, B1=846000, B2=25442000, E=6)

94.4 bits
Forum: Data 2021-11-15, 03:00
Replies: 119
Views: 10,163
Posted By slandrum
If 2^p-1 is composite and (2^p-1)/f is composite,...

If 2^p-1 is composite and (2^p-1)/f is composite, then you will get the same residue when PRP testing either of them. This can be seen if you examine the results of PRP-CF tests.
Forum: Lounge 2021-11-14, 16:47
Replies: 71
Views: 6,647
Posted By slandrum
everyone Exquisite voices express rhapsodic...

everyone

Exquisite voices express rhapsodic yearning optimistic nuanced expression

rhapsody
Forum: Math 2021-11-12, 18:15
Replies: 60
Views: 6,086
Posted By slandrum
Back in the day - on processors with no...

Back in the day - on processors with no multiplication instructions I used to do differences of squares with lookup tables for the squares for "fast" multiplication. xy = ((x+y)^2 + (x-y)^2)/4, so I...
Forum: Miscellaneous Math 2021-11-11, 16:21
Replies: 428
Views: 39,590
Posted By slandrum
You are free to do whatever you want with your...

You are free to do whatever you want with your hardware (or whatever hardware you are borrowing). But when you constantly talk about what you are doing, don't be surprised if people comment on it...
Forum: PrimeNet 2021-11-11, 05:54
Replies: 2,363
Views: 260,400
Posted By slandrum
I think what was being asked for - if the...

I think what was being asked for - if the exponent has already been proven composite, then tests saved cannot be more than 0.
Forum: Flea Market 2021-11-09, 03:38
Replies: 26
Views: 1,295
Posted By slandrum
Nobody but you cares what hardware you get. We...

Nobody but you cares what hardware you get. We don't need to hear every thought that goes through your head as you ponder your decision. If you have questions - ask them, directly. Or do your own...
Forum: PrimeNet 2021-11-06, 00:42
Replies: 2
Views: 476
Posted By slandrum
My guess would be that there were expired tests...

My guess would be that there were expired tests that completed later. Ben Delo's account is one that frequently expires out on tests (either because mprime stopped for some reason, or the machine...
Forum: Lounge 2021-11-05, 02:45
Replies: 71
Views: 6,647
Posted By slandrum
expelled excited xenon produces energetic...

expelled

excited xenon produces energetic little light emitting devices

emitting
Forum: Miscellaneous Math 2021-11-04, 01:57
Replies: 428
Views: 39,590
Posted By slandrum
I don't see how this follows - TF is faster in a...

I don't see how this follows - TF is faster in a particular bit range on higher exponents because you are looking at fewer candidates and therefore have a smaller chance of finding a factor in that...
Forum: PrimeNet 2021-11-02, 02:41
Replies: 17
Views: 967
Posted By slandrum
How many Mersenne primes have you found with LL?

How many Mersenne primes have you found with LL?
Forum: greenskull 2021-10-26, 16:39
Replies: 35
Views: 856
Posted By slandrum
Regarding Running Man: Originally...

Regarding Running Man:



Originally published under the pen name Richard Bachman.

The movie is of course only very loosely based on the story.
Forum: greenskull 2021-10-26, 05:03
Replies: 35
Views: 856
Posted By slandrum
Rocky Horror Picture Show (1975)

Rocky Horror Picture Show (1975)
Forum: greenskull 2021-10-26, 04:58
Replies: 35
Views: 856
Posted By slandrum
Dark Star (1974) - Comedy science fiction, very...

Dark Star (1974) - Comedy science fiction, very low budget, started as a school project
John Carpenter and Dan O'Bannon early in their careers, you can see hints of their later work.
Forum: PrimeNet 2021-10-26, 03:05
Replies: 2,363
Views: 260,400
Posted By slandrum
Server accounting is off

The following line from the exponent status distribution:
105000000 54071 | 35011 14284 4769 7 | 8 3 | 221 4542 |
Shows 7 exponents left to clear...
Forum: PrimeNet 2021-10-26, 02:39
Replies: 9
Views: 550
Posted By slandrum
So don't submit the result - nothing says you...

So don't submit the result - nothing says you have to.
Forum: greenskull 2021-10-26, 02:36
Replies: 54
Views: 1,363
Posted By slandrum
Yes!

Yes!
Forum: greenskull 2021-10-24, 23:07
Replies: 35
Views: 856
Posted By slandrum
The Thing (1982) based on the novella Who Goes...

The Thing (1982) based on the novella Who Goes There by John W. Cambell Jr.
Showing results 1 to 25 of 246

 
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