The smallest value of n, for which 2n+1 is not a prime number, is	Options:
A) 3	B) 4	C) 5	D) 6	E) 7
(2×1 + 1) = 3.   (2×2 + 1) = 5.   (2×3 + 1) = 7.   (2×4 + 1) = 9.   which is not prime , n=4.   ANSWER:4
<result>B</result>
The smallest value of n, for which 2n+1 is not a prime number, is