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Old 2021-08-25, 22:20   #3
kriesel
 
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Mar 2017
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Occasionally, 6k+1 will be exposed to possible factoring by one higher prime than 6k-1 is, as least factor > 1. For example 167 is prime and sqrt(167) = 12.9228...; 169=132.

Last fiddled with by kriesel on 2021-08-25 at 22:29
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