Which of the following numbers are squares of even numbers?

121, 225, 256, 324, 1296, 6561, 5476, 4489, 373758

Only even numbers be the square of even numbers

So, 256, 324, 1296, 5476, 373758 can be square of even numbers but 373758 is not a perfect square


So, 256, 324, 1296, 5476 are numbers


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