If x = (y)(y + 1) and y is a prime number less than 10, which of the following could not be the product of 2 consecutive integers?	Answers
A) a) 5x B) b) 11x C) c) 16x D) d) 30x E) e) 57x
Given y is a prime number less than 11   possible values of y are 2 3 5 7   given, x=y*(y+1)   if y = 2 x=2*3= 
<gadget id="calculator">2*3</gadget>
<output>6</output>
6   if y= 3 x=3*4= 
<gadget id="calculator">3*4</gadget>
<output>12</output>
12   if y= 5 x=5*6= 
<gadget id="calculator">5*6</gadget>
<output>30</output>
30   if y= 7 x=7*8= 
<gadget id="calculator">7*8</gadget>
<output>56</output>
56   so possible values of x are 6,12,30,56   So from options   A. 5x can be (5*6)   B. 11x can be (11*12)   C. 16x can be (16*17)   D. 30x can be (30*31)   E. 57x can be (56*57)   So answer option c) 16x
<result>C</result>
If x = (y)(y + 1) and y is a prime number less than 10, which of the following could not be the product of 2 consecutive integers?