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Forum: Riesel Prime Search 2022-10-02, 17:21
Replies: 71
Views: 22,068
Posted By MooMoo2
Double checking k=19 is complete to n=2176K. No...

Double checking k=19 is complete to n=2176K. No problems found, and the results are attached.

edit: I'm not planning on doing any further doublechecking on this k.
Forum: Proth Prime Search 2022-07-30, 21:14
Replies: 16
Views: 3,749
Posted By MooMoo2
1988-10-21: 19881021*2^7+1 is prime! (10...

1988-10-21:


19881021*2^7+1 is prime! (10 decimal digits)
19881021*2^17+1 is prime! (13 decimal digits)
19881021*2^23+1 is prime! (15 decimal digits)
19881021*2^29+1 is prime! (17 decimal...
Forum: Riesel Prime Search 2022-07-11, 00:22
Replies: 1,060
Views: 176,327
Posted By MooMoo2
k=39 is now at n=5.482M. No new primes found, and...

k=39 is now at n=5.482M. No new primes found, and I'm continuing.

The results file is attached.
Forum: Riesel Prime Search 2022-06-04, 18:56
Replies: 1,060
Views: 176,327
Posted By MooMoo2
k=19 is complete to n=5.073M with no primes...

k=19 is complete to n=5.073M with no primes found, and the results are attached. I'm continuing with this k.

Somewhat interesting fact: it takes slightly longer to test n=5M to n=5.073M than it...
Forum: Riesel Prime Search 2022-06-04, 18:41
Replies: 71
Views: 22,068
Posted By MooMoo2
Double checking k=19 from n=1-1787500 (1.7875M)...

Double checking k=19 from n=1-1787500 (1.7875M) is complete. No problems found, and the results are attached.

For reference, the list of primes up to n=1.7875M that were confirmed are:

19*2^1-1...
Forum: Lounge 2022-06-01, 04:50
Replies: 106
Views: 21,270
Posted By MooMoo2
Devil's bridge, Sedona. As a side note, this is...

Devil's bridge, Sedona. As a side note, this is my 666th post :devil:

Realistic version, not the social media version
Forum: Lounge 2022-06-01, 04:48
Replies: 106
Views: 21,270
Posted By MooMoo2
Devil's bridge, Sedona. I went there and stood on...

Devil's bridge, Sedona. I went there and stood on the bridge a few weeks ago.

Social media version
Forum: Puzzles 2022-04-17, 18:13
Replies: 3
Views: 1,230
Posted By MooMoo2
The tripling-halving reduction game

While trying to fall asleep last night, I thought up of the following game/problem. It inevitably made me stay awake even longer while trying to solve it, but in the end, I fell asleep before finding...
Forum: Soap Box 2022-03-02, 06:23
Replies: 429
Views: 22,800
Posted By MooMoo2
On a somewhat related note, I noticed that one of...

On a somewhat related note, I noticed that one of our forum members is (was?) from Kiev. He hasn't logged on in years, but I do hope he is OK:
https://www.mersenneforum.org/member.php?u=1701
Forum: Twin Prime Search 2022-02-23, 16:05
Replies: 12
Views: 8,106
Posted By MooMoo2
Thanks! In hindsight, I'm glad that I didn't...

Thanks! In hindsight, I'm glad that I didn't check that computer too often. If I checked it on a daily basis, I would have stopped the search after finding the 12566577633*2^211088+/-1 twin, and the...
Forum: Twin Prime Search 2022-02-23, 05:44
Replies: 12
Views: 8,106
Posted By MooMoo2
Well, I wondered what the lowest twin k was for...

Well, I wondered what the lowest twin k was for n=211088, so I sieved for twins only this time. I checked that computer every 7-10 days or so, but nothing came up for a long time. I figured that...
Forum: Lounge 2021-11-06, 22:13
Replies: 106
Views: 21,270
Posted By MooMoo2
A few months ago, I drove on Highway 212, which...

A few months ago, I drove on Highway 212, which leads from Montana to the northeast entrance of Yellowstone National Park. The section of that route between Red Lodge and Cooke City is also known as...
Forum: Computer Games 2021-08-08, 21:34
Replies: 1
Views: 971
Posted By MooMoo2
Doodle games?

I'm wondering whether anyone here has tried out Google's Champion Island game: https://en.wikipedia.org/wiki/Doodle_Champion_Island_Games

I messed around with it for a few hours and found it to be...
Forum: Lounge 2021-07-30, 20:13
Replies: 45
Views: 3,646
Posted By MooMoo2
:rofl:

:rofl:
Forum: Lounge 2021-07-30, 19:49
Replies: 45
Views: 3,646
Posted By MooMoo2
It would probably be harder (and possibly require...

It would probably be harder (and possibly require more violence) to create an empire from scratch than to take over an existing empire.
Forum: Lounge 2021-07-29, 16:29
Replies: 45
Views: 3,646
Posted By MooMoo2
The typical American neighborhood won't have...

The typical American neighborhood won't have demolition charges, so you can't bring those back. But bringing back horses and horseback riders (you'd still be limited to 50 men) would be OK. Latin...
Forum: Lounge 2021-07-29, 15:36
Replies: 45
Views: 3,646
Posted By MooMoo2
I'm no fan of slavery, but you'd run the risk of...

I'm no fan of slavery, but you'd run the risk of getting overthrown or executed if you implemented dramatic changes. Free the slaves, and you'll have a whole bunch of pissed off ex-slave owners...
Forum: Lounge 2021-07-29, 15:01
Replies: 45
Views: 3,646
Posted By MooMoo2
I'd keep the social structure mostly the same,...

I'd keep the social structure mostly the same, but would introduce modern knowledge like germ theory and the steam engine: https://www.goodreads.com/book/show/18114087-the-knowledge

With that...
Forum: Lounge 2021-07-29, 14:47
Replies: 45
Views: 3,646
Posted By MooMoo2
Going back to c.218 BC would probably be the...

Going back to c.218 BC would probably be the easiest. Form an alliance with Hannibal's soldiers, and the Romans will have to deal with elephants and rifles...
Forum: Lounge 2021-07-28, 16:33
Replies: 45
Views: 3,646
Posted By MooMoo2
Couldn't the group split up? 20 vehicles would...

Couldn't the group split up? 20 vehicles would have both a driver/flyer and a shooter, while the remaining 10 men stay behind to guard the rest of the vehicles.


I'll allow weapon and vehicle...
Forum: Lounge 2021-07-28, 16:06
Replies: 45
Views: 3,646
Posted By MooMoo2
Because I'm looking for a good challenge :smile: ...

Because I'm looking for a good challenge :smile:

Going further back (300 BC?) to the early days of the Roman Republic would make things too easy, while going forward and overthrowing an 18th...
Forum: Hobbies 2021-07-28, 15:40
Replies: 14
Views: 2,005
Posted By MooMoo2
Interesting. I wonder what would happen if him...

Interesting. I wonder what would happen if him and an ordinary guy got into a non-fatal accident. Both of them have nearly identical injuries that force them to be sedentary for a few weeks. Would he...
Forum: Lounge 2021-07-28, 06:10
Replies: 45
Views: 3,646
Posted By MooMoo2
Could a small neighborhood conquer the Roman empire?

A few years ago, I checked into a hotel while on a road trip. There was an airport, a car dealership, and a gun range nearby, which were all within biking distance of the hotel. When I checked out a...
Forum: Hobbies 2021-07-28, 05:13
Replies: 14
Views: 2,005
Posted By MooMoo2
Could you beat an Olympic gold medalist at his/her best event?

I was thinking about the old nurture vs. nature debate that seems to come up each time the Olympics are held (yes, you need both to succeed) and thought of the following scenario:

An Olympic gold...
Forum: Soap Box 2021-07-23, 20:19
Replies: 131
Views: 23,091
Posted By MooMoo2
Yeah, it should have been "record low since the...

Yeah, it should have been "record low since the dam reached capacity". Kind of like how M51 is not the largest prime; just the largest known prime.


I thought that Mead's decline would stop...
Showing results 1 to 25 of 671

 
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