If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then y must be
Choose one:
A) 2 B) 5 C) 6 D) 7 E) 14
3150*y = A^2   3 * 1050 * y = A^2   3*5*210*y = A^2   3*5*7*3*2*5*y = A^2   2*3^2*5^2*7*y = A^2   Concept: The factors of squared integer should occur in pair. So, the only numbers left are 2*7   Hence 14	;   ANSW14R:14
<result>E</result>
If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then y must be