[QUOTE=ixfd64;177337]Is "Odd M. Strindmo" an alias of Stig M. Valstad?[/QUOTE]

I was wondering this myself.

[QUOTE=T.Rex;177309]M42643801 is prime! G29: 00000000,0
NEW MERSENNE PRIME DISCOVERED !!!!
:smile::toot::toot::grin::w00t::fusion:[/QUOTE]

And she is so cute :)

[quote=TheJudger;177340]And she is so cute :)[/quote]
why is it a she?
:party::party::party::party::party::party::party::party::party::party:

Congratulations Tony on reclaiming your verification crown. All hail le Dauphin.

Also my apologies for my little misdirection. It's amazing how many posts were generated from one little sentence :smile:

[quote=henryzz;177343]why is it a she?[/quote]
The sex of Mersenne primes (not to be confused with [URL="http://en.wikipedia.org/wiki/Sexy_prime"]sexy primes[/URL]) can be determined by the [URL="http://www.mersenneforum.org/showpost.php?p=177333&postcount=30"]number of factors in p-1[/URL]. Girls have an even number of factors, while boys have an odd number of factors. M46 has 10 and so is a girl.


[SIZE=2][SPOILER][/SIZE][SIZE=2]If you want to actually know, I think everyone just started calling it that after [URL="http://www.mersenneforum.org/showpost.php?p=177305&postcount=423"]this post[/URL] by Svenie25 and the title of [URL="http://www.mersenneforum.org/showpost.php?p=177309&postcount=427"]this post[/URL] (referring to Svenie's) by T.Rex.[/SPOILER][/SIZE]

[QUOTE=Mini-Geek;177350]The sex of Mersenne primes (not to be confused with [URL="http://en.wikipedia.org/wiki/Sexy_prime"]sexy primes[/URL]) can be determined by the [URL="http://www.mersenneforum.org/showpost.php?p=177333&postcount=30"]number of factors in p-1[/URL]. Girls have an even number of factors, while boys have an odd number of factors. M46 has 10 and so is a girl.[/QUOTE]
six girls in a row, then ... that's a veritable sea of pink booties we got going there.

[QUOTE=ixfd64;177337]Is "Odd M. Strindmo" an alias of Stig M. Valstad?[/QUOTE]
Not sure about that, but when Tony and I got the discoverer's name from George, both of us thought of the same quip: that this find thus also yields the first "Odd perfect number".

How can be it be a perfect number? That would make it composite.

[QUOTE=Primeinator;177356]How can be it be a perfect number? That would make it composite.[/QUOTE]

Not the Mersenne, the PN associated with it.

:maybeso::wblipp::cheesehead::george::et_::paul::philmoore::wacky::curtisc::kosmaj:

[QUOTE=ewmayer;177357]Not the Mersenne, the PN associated with it.[/QUOTE]

What is the associated perfect number? 2^p -2?

[quote=Primeinator;177360]What is the associated perfect number? 2^p -2?[/quote]
The even perfect number associated with a Mersenne prime is [tex]2^{p-1}*(2^p-1)[/tex], in the case of M46 this is [tex]2^{42643800}*(2^{42643801}-1)[/tex]. The thing about the perfect number being "odd" was a pun on the name listed there.