Happy 11/11/11 !

R. Gerbicz · 2011-11-10, 15:04

Somewhat really interesting day coming tomorrow we could see on the clock: (20)11.11.11. 11:11:11

http://www.guardian.co.uk/science/20...friday-morning

davieddy · 2011-11-10, 15:22

Quote:

Originally Posted by R. Gerbicz

Somewhat really interesting day coming tomorrow we could see on the clock: (20)11.11.11. 11:11:11

http://www.guardian.co.uk/science/20...friday-morning

Seems like a special case of a palindrome to me.

Is it prime?

All I know is that FIFA has decreed that our football
teams can't display a poppy on their shirts, and world
peace is unlikely to break out shortly.

DavaD

ckdo · 2011-11-10, 23:34

Happy Skyrim day, everyone!

gd_barnes · 2011-11-10, 23:48

Quote:

Originally Posted by davieddy

Is it prime?

DavaD

No, although if you truncate some digits, you get 4 primes:

11 = prime
111 = 3 * 37
1111 = 11 * 101
11111 = 41 * 271
111111 = 3 * 7 * 11 * 13 * 37
1111111 = 239 * 4649
11111111 = 11 * 73 * 101 * 137
111111111 = 3^2 * 37 * 333667
1111111111 = 11 * 41 * 271 * 9091
11111111111 = 21649 * 513239
111111111111 = 3 * 7 * 11 * 13 * 37 * 101 * 9901
2 = prime
20 = 2^2 * 5
201 = 3 * 67
2011 = prime
20111 = 7 * 13^2 * 17
201111 = 3 * 43 * 1559
2011111 = prime
20111111 = 643 * 31277
201111111 = 3^2 * 149 * 149971
2011111111 = 29 * 59 * 919 * 1279
20111111111 = 7^3 * 13 * 4510229
201111111111 = 3 * 229 * 292738153
2011111111111 = 24223 * 83024857
20111111111111 = 281 * 1283 * 55783157

Uncwilly · 2011-11-11, 00:20

Finally, a date that the Europeans, the Japanese, and them Yanks can all agree upon.

bcp19 · 2011-11-11, 01:38

Quote:

Originally Posted by Uncwilly

Finally, a date that the Europeans, the Japanese, and them Yanks can all agree upon.

But sadly, not the military (11 Nov 2011)

Uncwilly · 2011-11-11, 02:17

Quote:

Originally Posted by bcp19

But sadly, not the military (11 Nov 2011)

How about: 65361.9 or 65327.1 or 11111.11?

petrw1 · 2011-11-11, 14:31

I have this on my results page:

Code:

Hand_In_The_Box 58056107 NF-PM1 2011-11-11 11:11 20.4 B1=690000, B2=20182500 5.3843

petrw1 · 2011-11-11, 17:11

...

No seconds...

science_man_88 · 2011-11-11, 21:18

Quote:

Originally Posted by R. Gerbicz

Somewhat really interesting day coming tomorrow we could see on the clock: (20)11.11.11. 11:11:11

http://www.guardian.co.uk/science/20...friday-morning

next one is 12/12/12 then it won't happen again until January 1st 2101. it happens 12 times a century it just crams all into the first 12 years.

Flatlander · 2011-11-11, 21:32

What about Captain Slog and his stardate?

I remember contemplating 7/7/77 and one of Fergie's daughters was born 8/8/88 at 8:18 iirc.

2011-11-10, 15:04	#1
R. Gerbicz "Robert Gerbicz" Oct 2005 Hungary 2642₈ Posts	Happy 11/11/11 ! Somewhat really interesting day coming tomorrow we could see on the clock: (20)11.11.11. 11:11:11 http://www.guardian.co.uk/science/20...friday-morning

2011-11-11, 14:31	#8
petrw1 1976 Toyota Corona years forever! "Wayne" Nov 2006 Saskatchewan, Canada 3·37·41 Posts	I have this on my results page: Code: Hand_In_The_Box 58056107 NF-PM1 2011-11-11 11:11 20.4 B1=690000, B2=20182500 5.3843

2011-11-11, 17:11	#9
petrw1 1976 Toyota Corona years forever! "Wayne" Nov 2006 Saskatchewan, Canada 3·37·41 Posts	11:11:11 attempt ... No seconds... Last fiddled with by petrw1 on 2011-11-11 at 17:11

2011-11-11, 21:32	#11
Flatlander I quite division it "Chris" Feb 2005 England 31·67 Posts	What about Captain Slog and his stardate? I remember contemplating 7/7/77 and one of Fergie's daughters was born 8/8/88 at 8:18 iirc. Last fiddled with by Flatlander on 2011-11-11 at 21:33

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Happy 222*251!	Andi47	Lounge	4	2010-01-13 07:56
Happy 235*67	Andi47	Lounge	15	2010-01-02 01:11
Happy Odd Day	petrw1	PrimeNet	1	2009-05-07 16:31
happy Pi Day!	ixfd64	Lounge	30	2008-03-15 19:28
Happy B-Day	TTn	15k Search	1	2006-03-22 23:55

2011-11-10, 23:34	#3
ckdo Dec 2007 Cleves, Germany 2×5×53 Posts	Happy Skyrim day, everyone!

2011-11-11, 00:20	#5
Uncwilly 6809 > 6502 """"""""""""""""""" Aug 2003 101×103 Posts 3·5·7·89 Posts	Finally, a date that the Europeans, the Japanese, and them Yanks can all agree upon.