20101212, 21:00  #903 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
9,491 Posts 
15^{12500}82 is primeinprogress.

20101212, 21:06  #904 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
9,491 Posts 
(38ยท10^{17876}29)/9 is a prime (17877 digits)

20101213, 10:03  #905 
Sep 2010
Scandinavia
3·5·41 Posts 
Is anyone keeping track of compositorials?

20101214, 01:16  #906 
May 2010
Prime hunting commission.
2^{4}×3×5×7 Posts 
The products of the first few composite numbers? Not that I'm aware of. You can get started on those.
Is that n!/n#? Last fiddled with by 3.14159 on 20101214 at 01:16 
20101214, 01:42  #907  
"Forget I exist"
Jul 2009
Dumbassville
2^{6}×131 Posts 
Quote:
first result they don't have is : 101 3789610361627996838140194973640931105417226023081643585822775079629508916741315290850885175293649036474831772927007647018057857770220427674522746880000000000000000000000000000000 by the looks of it. Last fiddled with by science_man_88 on 20101214 at 02:02 

20101214, 04:26  #908 
Aug 2006
3×1,993 Posts 
If you like you can submit a bfile with more terms. I don't usually send in bfiles for easy sequences unless there's special interest for some reason (for example, with plot2).
You may find this useful: http://oeis.org/wiki/User:Charles_R_...g_with_bfiles 
20101214, 06:30  #909  
Sep 2010
Scandinavia
3×5×41 Posts 
Quote:
So; n!/n# +/ 1 Like 2967!/2967#1 (7753digits) 2532!/2532#1 (6453digits) factordb has tables for n!/n# +/ 1 http://factorization.ath.cx/tables.php?open=8 

20101214, 13:45  #910  
"Forget I exist"
Jul 2009
Dumbassville
10000011000000_{2} Posts 
Quote:
http://oeis.org/search?q=2,5,193&sor...lish&go=Search is the best I can get for the +1 side Last fiddled with by science_man_88 on 20101214 at 13:46 

20101224, 07:22  #913 
Sep 2010
Scandinavia
3·5·41 Posts 
Come on, that can't be it. Does anyone know any bigger ones?
Unrelated matter: Is anyone factoring 17^n+1? 
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