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Old 2021-03-04, 02:48   #1
MattcAnderson
 
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"Matthew Anderson"
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Default Whats a p7?

it is a seven digit prime number

for example 4002499

another is 828611

Cheers

Matt
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Old 2021-03-04, 03:11   #2
Uncwilly
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Context makes a difference:
Automotive: https://www.thedrive.com/new-cars/36...n-new-york-ipo
Airplane: https://en.wikipedia.org/wiki/Lockheed_P-7
CPUs: https://en.wikipedia.org/wiki/List_o...res#:~:text=P7
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Old 2021-03-04, 03:14   #3
CRGreathouse
 
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Quote:
Originally Posted by MattcAnderson View Post
it is a seven digit prime number

for example 4002499

another is 828611
There are \pi(10^7) - \pi(10^6) = 586,081 in total.
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Old 2021-03-04, 03:21   #4
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P7: proper prior planning prevents piss poor performance

Thanks go to WP for that one. And unsurprisingly it doesn't list the subject of this thread.
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Old 2021-03-04, 06:58   #5
Batalov
 
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Quote:
Originally Posted by MattcAnderson View Post
another is 828611
Ah, found your problem. Counting is hard!
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Old 2021-03-04, 06:59   #6
MattcAnderson
 
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Hi all,

Thank you specifically for the last 3 replies. They really put a smile on my face.

Cheers
Matt
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Old 2021-03-04, 09:45   #7
retina
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A small and easy little quiz for MattcAnderson.

Is there always a prime Pn for every n>0?
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Old 2021-03-04, 18:03   #8
R. Gerbicz
 
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"Robert Gerbicz"
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Quote:
Originally Posted by MattcAnderson View Post
it is a seven digit prime number
for example 4002499
another is 828611
Destroyed?
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
look the fractional part(!)

(for the 2nd formula we also have a financial tale)

Big coincidence?
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Old 2021-03-05, 22:13   #9
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Quote:
Originally Posted by Batalov View Post
Ah, found your problem. Counting is hard!
There are 3 types of people: those who can count and those who can't.
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Old 2021-03-05, 22:27   #10
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Quote:
Originally Posted by ZFR View Post
There are 3 types of people: those who can count and those who can't.
There are 10 types of people:
Those that can infer from incomplete data,
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Old 2021-03-05, 23:33   #11
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Quote:
Originally Posted by MattcAnderson View Post
it is a seven digit prime number
...
another is 828611
828611 = 7 × 118373 = 7 x p6 = c6
2828611 and 3828611 are p7's.
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