Let k denote the positive square root of 2.
What is the 144-th digit of (-1+k) ²⁰¹⁷ ?

I found this problem with some other parameters – same level of difficulty !


So, hold your breath, do not rush to omnipotent computer, – use your brains,
an easy trick does it.

(In reply to re: Answer by Ady TZIDON)

 0.5  ⁴ = 0.0625 < 0.1. This is one step I should not have skipped :)

Posted by chun on 2017-08-15 08:07:41