# ASTOUNDING: 1 + 2 + 3 + 4 + 5 + … = -1/12

The sum of all positive integers is divergent, but the result is ( -1/12).

Crazy but it is true in Quantum Physics (String Theory) !

2nd Proof:

$\zeta (-1) = 1 + 2 + 3 + 4 + ... = - \frac {1}{12}$