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Fastest way to determine if an integer's square root is an integer
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Square root of a square
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Characterization of integers which has a $2$-adic square root
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Deciding whether $2^{\sqrt2}$ is irrational/transcendental
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Determine if a String is an Integer in Java
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Find all primes $p$ such that $(2^{p-1}-1)/p$ is a perfect square
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How to test if a double is an integer
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Testing if given number is integer
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The minimum number of digits after the floating-point, which uniquely identify every irrational square root
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Square root of $2$ is irrational
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Square root of a number squared is equal to the absolute value of that number
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Values of square roots
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Prove that the expression is a perfect square
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Checking if an input number is an integer
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Primality test bound: square root of n
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Sum of the digits of a perfect square
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is $\sqrt{x}$ always positive?