Karen G.

asked • 03/13/16

suppose p denotes a prime congruent to 3 modulo 4; use wilson's theorem to prove that

suppose p denotes a prime congruent to 3 modulo 4; use wilson's theorem to prove that
 
(P-1/2)!2   ≡ 1 (mod p)
 
 Hint: Prove that  ((p-1)/2)!2  ≡  (p-1)!  (mod p)
 
 
 
 
Please explain the thinking process behind the proof and show all work. Thanks so much for your help!!

1 Expert Answer

By:

Alan G. answered • 03/13/16

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