There's no such thing as "the fifth square" of a number.
To calculate any whole-number power of a number, write the number that many times
all on one line, then write the word "times" between them, get your pencil out, and get
to work.
The 5th power of a number 'N' is
'N' times 'N' times 'N' times 'N' times 'N' .
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The fifth square number of a positive integer is equal to 52 = 25.
1: Calculate the square root, then calculate its square root; OR 2: Take the logarithm of the number, divide it by 4 then take the antilog.
Multiply the number by itself.
The square of a number is the product of the number multiplied by itself. As examples, the square of 2 is 4 (2x2) and the square of 25 is 625 (25x25).
The largest 3-digit number - not itself a perfect square - is 999. Calculate its square root, round the answer down, then square the answer again.