Question

Which of the following is a counterexample for the given statement.

n^2+n+7 is prime.
a) n=1
b) n=2
c) n=3
d) n=5

Answer 1

all except n=1
am i correct?

Answer 2

dude idk

Answer 3

so the answer is a?

Answer 4

cus i can only pick one

Answer 5

idk means

Answer 6

so is -1 the counter example?

Answer 7

not negative