[shabbir]

Quote:

Originally Posted by mayjune

well it still is a debatable topic ...so i don't think 6 votes can decide that...
i think it should be no win, let him decide...

Thats why I shifted the discussion here and I guess we can have winner despite voting responses.

[Raj08]

so now does this means NO wins ?

[SaswatPadhi]

Quote:

Originally Posted by Raj08

so now does this means NO wins ?

No, that means Kshiteej wins !
Check this : http://www.go4expert.com/showpost.ph...4&postcount=10

[Saket]

Ohh, congrs to kshiteej. thanks saswatpadhi for your answer.

[xpi0t0s]

This is just about definitions so the only possible answer can be "no". For a "Yes" answer the definitions must be changed.

http://en.wikipedia.org/wiki/Prime_number states "a prime number (or a prime) is a natural number which has exactly two distinct natural number divisors: 1 and itself"

and http://en.wikipedia.org/wiki/Natural_number states "there are two conventions for the set of natural numbers: it is either the set of positive integers {1, 2, 3, ...} according to the traditional definition or the set of non-negative integers {0, 1, 2, ...}" - so this excludes all negative numbers from the definition of a prime.

and http://en.wikipedia.org/wiki/Divisor states "a divisor of an integer n, also called a factor of n, is an integer which evenly divides n without leaving a remainder."

Also if primes are redefined to include x<0, why is that of any interest? If x is prime then -x is also prime, so adding -2, -3, -5, -7 etc to the list adds no new information. Or you end up with no prime numbers at all, if for example -5 is divisible by -5, -1, 1 and 5, so every prime number by the current definition is not prime because any number x is divisible by +x, -x, +1 and -1. Or you extend the definition to say "exactly four distinct divisors: +/- 1 and +/- itself", in which case you're back to a set of primes where +x and -x are both prime or both not prime and so it has no benefit over the positive numbers only definition as is currently the case.

[c_user]

no negative no. cannot be prime... i agree with shabir's points.

[SaswatPadhi]

Wow, this thread is still alive and kicking !!

But, I request all members to give a justification for their vote, without which it's meaningless.
If you agree with someone's views like xpi0t0s, mayjune or shabbir (all of them have almost similar reasons, though ); just mention their name .. no need to write the same justification again