mersenneforum.org PRP for F33?
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2020-11-11, 04:46   #23
a1call

"Rashid Naimi"
Oct 2015
Remote to Here/There

26·31 Posts

Quote:
 Originally Posted by VBCurtis By this logic, nobody ever wins the lottery. You can't be serious.

Just claimed last week.
Winning the lottery is one thing winning $70M on 1st try is something completely different. Quote:  MONTREAL -- A Montrealer who decided to play the lottery for the first time ever in October is the lucky winner of the latest$70 million Lotto Max jackpot.
https://beta.ctvnews.ca/local/montre...1_5177970.html

 2020-11-11, 07:47 #24 sweety439   Nov 2016 22×3×5×47 Posts If F33 is prime, then this prime will prove the generalized Sierpinski conjecture base 32, since F33 = 4*32^1717986918+1
 2020-11-11, 08:56 #25 LaurV Romulan Interpreter     Jun 2011 Thailand 52·7·53 Posts Haha, isn't that "looking a bit too high"? (but yea, it will...)
2020-11-11, 10:11   #26
xilman
Bamboozled!

"𒉺𒌌𒇷𒆷𒀭"
May 2003
Down not across

296016 Posts

Quote:
 Originally Posted by bbb120 what does binary splitting mean? can you give more information about binary splitting ?

2020-11-11, 17:19   #27
Uncwilly
6809 > 6502

"""""""""""""""""""
Aug 2003
101×103 Posts

249C16 Posts

Quote:
 Originally Posted by bbb120 what does binary splitting mean? can you give more information about binary splitting ?
https://www.lmgtfy.app/#gsc.tab=0&gs...y%20splitting"

Last fiddled with by Uncwilly on 2020-11-11 at 17:19

2020-11-12, 00:54   #28
Dr Sardonicus

Feb 2017
Nowhere

22·5·7·31 Posts

Quote:
 Originally Posted by bbb120 according to prime number theorem , the probability of F33 is a prime only has 1/(2^33*log(2))=3.86723328252e-10, so it must be a composite number !
By the same "reasoning," all numbers larger than F33 also must be composite.

 2020-11-12, 01:17 #29 bbb120     Feb 2019 China 59 Posts http://numbers.computation.free.fr/C...splitting.html In mathematics, binary splitting is a technique for speeding up numerical evaluation of many types of series with rational terms. In particular, it can be used to evaluate hypergeometric series at rational points. but I can not understand this algorithm very well
2020-11-12, 01:55   #30
bbb120

Feb 2019
China

59 Posts

Quote:
 Originally Posted by xilman
can not be used in some country

2020-11-12, 02:52   #31
VBCurtis

"Curtis"
Feb 2005
Riverside, CA

111038 Posts

Quote:
 Originally Posted by bbb120 but I can not understand this algorithm very well
Lucky for you, you don't need to understand the algorithm itself in order to accept that an iteration of one algorithm can clearly take a lot longer than one iteration of another algorithm. The software that runs these algorithms is freely available- you can run it yourself to see how long each iteration takes on each program, as well as how iteration length scales with the size of the input. None of that self-teaching requires you to understand the algorithms, nor to understand how they're coded into software.

It's ok for some math to be over your head. It's less ok for you to notify us that it's over your head in a way that suggests you expect the forum to teach it all to you.

2020-11-12, 03:02   #32
LaurV
Romulan Interpreter

Jun 2011
Thailand

52×7×53 Posts

Quote:
 Originally Posted by Dr Sardonicus By the same "reasoning," all numbers larger than F33 also must be composite.
Aren't they? Show me a prime larger than F33...
I know there is an infinite number of primes, but they must be all smaller than F33, because we don't know any bigger...:P:P

Last fiddled with by LaurV on 2020-11-12 at 03:06 Reason: s/:razz:/:P:P/g (didn't realize it gave up the Raman text)

2020-11-12, 03:27   #33
retina
Undefined

"The unspeakable one"
Jun 2006
My evil lair

7·11·79 Posts

Quote:
 Originally Posted by LaurV Show me a prime larger than F33...
MM127

Now please, someone, prove me wrong and find a factor of that retched thing.