20210304, 02:48  #1 
"Matthew Anderson"
Dec 2010
Oregon, USA
2·3·151 Posts 
Whats a p7?
it is a seven digit prime number
for example 4002499 another is 828611 Cheers Matt 
20210304, 03:11  #2 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2^{3}×3^{2}×139 Posts 
Context makes a difference:
Automotive: https://www.thedrive.com/newcars/36...nnewyorkipo Airplane: https://en.wikipedia.org/wiki/Lockheed_P7 CPUs: https://en.wikipedia.org/wiki/List_o...res#:~:text=P7 
20210304, 03:14  #3 
Aug 2006
3×1,993 Posts 

20210304, 06:58  #5 
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
7·1,367 Posts 

20210304, 06:59  #6 
"Matthew Anderson"
Dec 2010
Oregon, USA
2·3·151 Posts 
Hi all,
Thank you specifically for the last 3 replies. They really put a smile on my face. Cheers Matt 
20210304, 09:45  #7 
Undefined
"The unspeakable one"
Jun 2006
My evil lair
2·3^{2}·349 Posts 
A small and easy little quiz for MattcAnderson.
Is there always a prime Pn for every n>0? 
20210304, 18:03  #8  
"Robert Gerbicz"
Oct 2005
Hungary
2·3^{2}·83 Posts 
Quote:
Code:
rate=0.1;year=21;(1+rate)^year rate=0.03;year=3;(1(1+rate)^(year))/rate answer: %1 = 7.4002499442581601012110000000000000000 %2 = 2.8286113548946809221333416306177114687 (for the 2nd formula we also have a financial tale) Big coincidence? 

20210305, 22:13  #9 
Feb 2008
Bray, Ireland
2×79 Posts 

20210305, 22:27  #10 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
10008_{10} Posts 

20210305, 23:33  #11 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest
5·13·89 Posts 

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