Re: Research prime's number

From: Vincenzo Librandi <vincenzo.librandweoz@xxxxxxxx>
Date: Sun, 06 May 2007 11:49:13 EDT

jinhyunshyam@xxxxxxxxx wrote:

Is 4+5 prime?

No, it isn't, because 9 belong
to the couple(3,6),that has 3
for divisor.

9 = (2,7),(3,6),(4,5).

yours sincerely.

Vincenzo Librandi
vincenzo.librandi@xxxxxxxx
.

References:
- Research prime's number
  - From: Vincenzo Librandi

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