Question 423692
{{{i^85 = i}}}
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{{{i^1 = i}}}
{{{i^2 = -1}}}
{{{i^3 = -i}}}
{{{i^4 = 1}}}
{{{i^5 = i}}}
{{{i^6 = -1}}}
{{{i^7 = -i}}}
{{{i^8 = 1}}}
It repeats each 4th cycle.
{{{i^85 = i^(21*4 + 1) = i^1 = i}}}