Talk:Magnanimous numbers: Difference between revisions

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→‎How to find bigger numbers faster: No new magnanimous number up to 1e19
(→‎How to find bigger numbers faster: show/explain how it works)
m (→‎How to find bigger numbers faster: No new magnanimous number up to 1e19)
 
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I can not imagine, how to get such a large number like the 571.th 97,393,713,331,910 in "acceptable" time.
-[[User:Horsth|Horsth]] ([[User talk:Horsth|talk]]) 17:49, 1 October 2021 (UTC)
It is done :-)<br>
modified using gmp see page
<pre>
getting primes 1.980 s
 
Count of gmp tests 213984
...
570 5391391551358
571 97393713331910
83.827 s // now 42.760 s
 
real 1m25,842s user 1m25,283ssys 0m0,220ss
</pre>
-[[User:Horst.h|Horst.h]] ([[User talk:Horst.h|talk]]) 15:27, 4 October 2021 (UTC)
::stopped searching after 18 digits finished.Still 571 magnanimous numbers <BR>
<pre>stopped
571 1,195,393,333,331,999,198 15260.633 s</pre>
19 digits will take about 16h...
As one can see, ending in 8, so no 7 in the number.
-[[User:Horst.h|Horst.h]] ([[User talk:Horst.h|talk]]) 17:28, 5 October 2021 (UTC)
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