Question 258540
Sounds like you want
{{{4123^(1/6)}}}
There are a few ways we could do this
(1) calculator / computer: ~ 4.00438
(2) estimation - Babylonian  style
4123 = 4^6 + 127
The 6th root is ~ 4 + 127/(6*4^5) ~ 4.0206.
Hope this is what you were looking for.