Question

WILL GIVE A MEDAL!!!!!!!! PLZ EXPLAIN TOO.

Sally made the conjecture that the sum of any two prime numbers is a prime number.

Which equation is a counterexample to her conjecture?

A.
3 + 11 = 14

B.
2 + 5 = 7

C.
2 + 11 = 13

D.
15 + 4 = 19

Answer 1

B 2+5=7

Answer 2

Wait!

Answer 3

can u explain it

Answer 4

A counter example would be a non-prime number so it would be A beucase 14 is not prime

Answer 5

Prime Numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 etc...