How many even integers from 1 to 50 (both inclusive) have even number of factors?
Choose the correct choice from the following options:
A) 3  B) 14  C) 5  D) 6  E) 7
Integers having even number of factors will be perfect squares. even numbers will have even perfect squares. Thus, the possible values for the perfect squares are :   4,16,36 and the corresponding integers are 2,4,6 (more than 2). Thus 3 is the correct answer .
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How many even integers from 1 to 50 (both inclusive) have even number of factors?