Forum: Lounge
2021-04-21, 15:09
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Replies: 1,360
Views: 87,354
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Forum: And now for something completely different
2021-04-21, 14:48
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Replies: 22
Views: 653
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: 1,360
Views: 87,354
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: 22
Views: 653
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: 113,532
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: 1,360
Views: 87,354
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: 44
Views: 4,981
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Forum: Lounge
2021-04-20, 20:15
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Replies: 1,357
Views: 113,532
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Forum: Soap Box
2021-04-20, 20:03
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Replies: 44
Views: 4,981
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Forum: Lounge
2021-04-20, 18:48
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Replies: 198
Views: 33,119
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: 113,532
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Forum: Science & Technology
2021-04-20, 16:25
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Replies: 2,888
Views: 218,288
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Forum: Lounge
2021-04-20, 11:59
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Replies: 1,711
Views: 150,990
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Forum: Miscellaneous Math
2021-04-19, 15:00
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Replies: 9
Views: 314
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: 1,090
Views: 77,937
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Forum: Soap Box
2021-04-19, 12:00
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Replies: 366
Views: 41,596
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Forum: Lounge
2021-04-18, 14:04
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Replies: 1,711
Views: 150,990
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Forum: Miscellaneous Math
2021-04-18, 13:31
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Replies: 26
Views: 549
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: 44
Views: 4,981
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Forum: Lounge
2021-04-17, 02:24
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Replies: 61
Views: 11,897
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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Forum: Lounge
2021-04-16, 01:36
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Replies: 4,280
Views: 321,428
Blindly following the laws of exponents, yes,...
Blindly following the laws of exponents, yes, repeatedly raising to the i power you get x, xi, x-1, x-i, x, ...
Unfortunately, the "laws of exponents" can go haywire when the exponents aren't real...
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Forum: Soap Box
2021-04-16, 01:21
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Replies: 44
Views: 4,981
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Forum: Soap Box
2021-04-15, 15:34
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Replies: 44
Views: 4,981
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Forum: Science & Technology
2021-04-15, 15:02
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Replies: 53
Views: 11,151
Ugh. That almost looks like enough to warrant...
Ugh. That almost looks like enough to warrant starting with a shovel. A grain scoop works pretty well for shoveling snow off a flat roof. Of course, snow you can just throw over the edge. I'm not...
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Forum: Math
2021-04-15, 14:55
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Replies: 10
Views: 4,945
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