Another Joke

[Trinh Anh Tuan <s7593tri@sun10.vsz.bme.hu>]

 Hi,

> Tui nho+' co\n va\i ddoa.n sau:
> 
> Chemist khi ddu+o+.c ho?i "ca'c so^' le? co' dde^\u la\ nguye^n
> to^'kho^ng" thi\ ba('t dda^\u: "3 la\ so^' nguye^n to^' ..., 5 la\ so^'
> nguye^n to^' ..., ca^u ho?i lu'c na^~y la\ gi\ nhi?"
> 
> Computer Scientist thi\ "3 la\ so^' nguye^n to^', 5 la\ so^'
> nguye^n to^', 7 la\ so^' nguye^n to^', 7 la\ so^' nguye^n to^',
> 7 la\ so^' nguye^n to^',... " 

 A historian " 3 is a prime number,5 is a prime number,7 is a prime
number,....Oh,just wait,and what about -1,-3,..."

Cheers,

--Tua^'n.