42 :)
was it How old was Pythagoras when he died?
He was 69 years old when he died. 570 BC to 501 BC.
More than you asked for (internet):
Born: 570 BC, Samos, Greece
Died: 501 BC, Metapontum
Full name: Pythagoras of Samos
Spouse: Theano
Parents: Mnesarchus, Pythais