Give stream of consciousness and then the final answer. If x is a positive integer, which of the following could NOT be the square of x?\nOptions:\n(A) 5,008,644\n(B) 5,004,169\n(C) 4,999,696\n(D) 4,995,225\n(E) 4,990,752
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A perfect square will never end in 2, 3, 7 or 8. (last digit cannot be 2, 3, 7 or 8)\nHere E is the odd one out.
The final answer: (E).
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