1 + 2 + 3 + 4 + 5 + …. = -1/12 – perpetual enigma Infinity sum plus numbers answer theory proof equal why Infinity sum numbers infinite integers negative math series until fraction number positive when natural gizmodo sploid small somehow
What Is 1 2/5 Of 2 3/5
Astounding: 1 + 2 + 3 + 4 + 5 + = -1/12 Ex induction mathematical chapter class