If z is a positive integer, which of the following could NOT be the square of z?
Choose the correct choice from the following: A) 5,008,644 B) 5,004,169 C) 4,999,696 D) 4,995,225 E) 4,990,752
A number ending with 2 can never be a perfect square.   Units digit of a perfect square must be:   1,4,9,6,5   Answer 4,990,752)   9*9=1   1,4,9,6,5   Ans:4,990,752
<result>E</result>
If z is a positive integer, which of the following could NOT be the square of z?