Since #527# is not a perfect square, you cannot factor it to figure out its square root. You would have to use a radical chart or a calculator to find an approximate answer as it is irrational. You also could do this by hand, but it would be very tedious and prone to mistakes. Try this link if you really want to learn the method. https://xlinux.nist.gov/dads/HTML/squareRoot.html
#+-sqrt527~~22.956#