How to find a no. is perfect square or not?
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For all the numbers ending in 1, 4, 5, 6, & 9 and for numbers ending in even zeros, then remove the zeros at the end of the number and apply following tests: Digital roots are 1, 4, 7 or 9. No number can be a perfect square.
For all the numbers ending in 1, 4, 5, 6, & 9 and for numbers ending in even zeros, then remove the zeros at the end of the number and apply following tests: Digital roots are 1, 4, 7 or 9. No number can be a perfect square.
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