## BdMO National Higher Secondary 2020 P2

Mursalin
Posts:68
Joined:Thu Aug 22, 2013 9:11 pm
BdMO National Higher Secondary 2020 P2
কতগুলো পূর্ণসংখ্যা $$n$$ আছে যেন $$1\leq n\leq 2020$$ এবং $$n^n$$ একটা পূর্ণবর্গ সংখ্যা?

How many integers $$n$$ are there subject to the constraint that $$1\leq n\leq 2020$$ and $$n^n$$ is a perfect square?
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Mehrab4226
Posts:230
Joined:Sat Jan 11, 2020 1:38 pm