101 (non-duplicate) guesses, and nobody got it.
The correct answer was:
241Two hundred forty one: https://en.wikipedia.org/wiki/241 -tkbx (bitcointalk)
SHA256--> 9a52486ec6b39cd0cf036954621843b0da87cf0cb36aedd8317e10593641129f
Thanks for playing, maybe I'll do another one of these soon when I have more bitcoins