4
x64 is not a perfect square any number if it is a 3-digit perfect square and ending with 4 it can be 144,324 ,484 and 784 because the number is ending with 4 but the tens digit is not matching to any of the option so it is not a perfect square
9801
The largest square factor of 244 is 4.
I am pretty sure you can figure this out on your own. Raise different numbers to the square, until you get a 4-digit result. Similary, calculate the cube of different numbers, until you get a 4-digit number. If you want the SAME number to be both a perfect square and a perfect cube, then it must be a power of 6. In that case, just experiment raising different numbers to the sixth power, until you get a 4-digit number.
It's 4. (31,622)2 = 999,950,884 .
1024, square of 32.
4,096 = (64)2 = (16)3
99*99=9801
10000 is the square of 100 so you're looking for the square of 99 which is 9801.
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