Here is a tentative conjecture that needs to be tested.(adsbygoogle = window.adsbygoogle || []).push({});

[P! + P]/P^2 = INTEGER

if and only if P is a prime number

P! is P factorial, e.g. 3*2*1 , 5*4*3*2*1 , 7*6*5*4*3*2*1, etc...

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# Prime Factorial Conjecture

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