Question 434885
If you mean {{{root(4,41^7)}}}
= {{{41*root(4,41^3)}}}
=~ 664.311467
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{{{41^7 = 1.947542739*10^11}}} from a calculator
{{{root(4,1.947542739*10^11)}}} is the same answer as above.
Had it been a larger result, it could overflow the calculator, then the simplification would be more relevant.