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It is if the number is more than ' 1 '. If the number is less than ' 1 ', then it's smaller than its own square root.
87 is the only 2-digit number that is 6 greater and 13 less than a square, but it is not prime.
A beprisque number nnn is an integer which is either one more than a prime number and one less than a perfect square, or one more than a square and one less than a prime. The 5th such number is 10.
No, not always since: if a number is more than 1, then its square root is smaller than the number. if a number is less than 1, then its square root is bigger than the number.
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