Forum: And now for something completely different
2021-04-23, 00:47
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Replies: 28
Views: 861
I am 10.5 months into certification -- I now...
I am 10.5 months into certification -- I now guess it will be done by Christmas :smile:[/QUOTE]I was wondering whether anyone was trying to prove it prime. I decided getting enough factors of N-1...
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Forum: Soap Box
2021-04-23, 00:33
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Replies: 45
Views: 5,025
This twitter post...
This twitter post (https://twitter.com/trifectablog/status/1384696131226152962) in a thread about Tucker Carlson's unhinged reaction to the verdict in the Derek Chauvin case had me in stitches...
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Forum: Lounge
2021-04-22, 16:33
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Replies: 230
Views: 24,674
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Forum: Lounge
2021-04-22, 12:43
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Replies: 1,363
Views: 87,478
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Forum: Miscellaneous Math
2021-04-22, 12:24
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Replies: 21
Views: 413
Arnault, F. Rabin-Miller Primality Test:...
Arnault, F. Rabin-Miller Primality Test: Composite Numbers Which Pass It. Math. Comput. 64, 355-361, 1995
gives a method for constructing counterexamples that "fool" Rabin-Miller. He gives a...
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Forum: Lounge
2021-04-21, 15:09
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Replies: 1,363
Views: 87,478
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Forum: And now for something completely different
2021-04-21, 14:48
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Replies: 28
Views: 861
If you click on an interval in the Details...
If you click on an interval in the Details section on the page you link to (https://www.kurtbeschorner.de/#rprimes), you get all the results - factors or PRP test residues.
It appears that there's...
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Forum: Lounge
2021-04-21, 13:32
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Replies: 1,363
Views: 87,478
Is this the new Brexit?[/QUOTE]My (admittedly...
Is this the new Brexit?[/QUOTE]My (admittedly very limited) understanding is that under the current setup, teams are selected for the Champions League based on recent years' performances. However,...
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Forum: And now for something completely different
2021-04-21, 00:41
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Replies: 28
Views: 861
Wow, heck of a find! Not a whole lot of...
Wow, heck of a find! Not a whole lot of more-than-million-decimal-digit PRPs known.
Hmm. OEIS lists Rp exponents as 2, 19, 23, 317, 1031, 49081, 86453, 109297, 270343, ...
and gives 2007 for...
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Forum: Lounge
2021-04-21, 00:19
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Replies: 1,357
Views: 113,785
Not enough...Oh, I thought it was funnier than...
Not enough...Oh, I thought it was funnier than all get-out, a COVID denier getting it. Not to mention ironic.
It seems R's are quite averse to getting vaccinated, despite their Orange God pushing...
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Forum: Lounge
2021-04-21, 00:08
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Replies: 1,363
Views: 87,478
The fans weigh in...
I heard about this recently, and it sounded like a done deal. Apparently not!
Super League near collapse as the 6 English clubs withdraw...
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Forum: Soap Box
2021-04-20, 21:09
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Replies: 45
Views: 5,025
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Forum: Lounge
2021-04-20, 20:15
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Replies: 1,357
Views: 113,785
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Forum: Soap Box
2021-04-20, 20:03
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Replies: 45
Views: 5,025
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Forum: Lounge
2021-04-20, 18:48
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Replies: 198
Views: 33,193
Just for my own amusement, I measured the n-th...
Just for my own amusement, I measured the n-th gap between consecutive known Mersenne prime exponents e as (en+1 - en)/en and ranked them from largest to smallest. The gap between 127 and 521 thus...
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Forum: Lounge
2021-04-20, 18:06
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Replies: 1,357
Views: 113,785
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Forum: Science & Technology
2021-04-20, 16:25
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Replies: 2,888
Views: 218,493
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Forum: Lounge
2021-04-20, 11:59
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Replies: 1,711
Views: 151,170
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Forum: Miscellaneous Math
2021-04-19, 15:00
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Replies: 9
Views: 317
No.
In the words of Joe Biden, "Aw, c'mon,...
No.
In the words of Joe Biden, "Aw, c'mon, man!" What is the definition of multiplicative order mod p?
EDIT: Even better, what does the theorem in the thread title tell you if p > 2?
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Forum: Lounge
2021-04-19, 12:40
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Replies: 1,091
Views: 78,089
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Forum: Soap Box
2021-04-19, 12:00
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Replies: 366
Views: 41,708
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Forum: Lounge
2021-04-18, 14:04
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Replies: 1,711
Views: 151,170
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Forum: Miscellaneous Math
2021-04-18, 13:31
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Replies: 26
Views: 550
Thank you for explaining what the program...
Thank you for explaining what the program actually does.
The usage of "quadratic residue" in the thread title is completely wrong. The residue a (mod n) is a quadratic residue if x^2 == a (mod n)...
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Forum: Soap Box
2021-04-17, 13:10
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Replies: 45
Views: 5,025
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Forum: Lounge
2021-04-17, 02:24
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Replies: 61
Views: 11,937
On Monday April 12, I saw my first large...
On Monday April 12, I saw my first large butterfly of the year, a Papilio glaucus - Eastern Tiger Swallowtail, a large yellow butterfly with black stripes on its wings.
Today (Friday April 16),...
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