- If your conjecture were true we wouldn't have any

Mersenne primes.

Bouk.

>

__________________________________________________

> I have 'good reason to believe' that

> 2^n - 1 = n*p for some integer n, p a prime.

>

> n is odd, "I know that, I know that.."

>

> Can you prove me wrong, right!

>

> regards

> Paul Mills

> Keniworth,

> England.

>

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a year! http://personal.mail.yahoo.com/ - At 06:21 PM 6/22/2004, edmorrey wrote:
>I have found that the sum of all the prime number to a number plus 2

No it doesn't, it fails for:

>or 3 alternating gives a prime number

>

>for example:

>

>2 +3 = 5

>2+3 +2 = 7

>2+3+5 +3 = 13

>2+3+5+7 +2 = 19

>2+3+5+7+11 + 3 = 31

>2+3+5+7+11+13 +2 = 43

>ect.

>

>I will like to know if this is thruth in all the cases

# terms sum

21 715

22 793

24 965

27 1267

30 1595

etc.