14. Find the least number of five digits which is a perfect square. Find the square root of this number.
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The square root of 10,000 is 100. It took only about 45 seconds with a calculator to find 99,856, which has a square root of 316. So there you have, the largest and smallest 5-digit perfect squares. 99,999 ^ (1/2) = 316.226…, so 316 ^ 2 will give you the largest five digit number that is a perfect square (or 99,856)
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