Question

i will medal 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.


15 + 4 = 19


B.


2 + 5 = 7


C.


2 + 11 = 13


D.


3 + 11 = 14

Answer 1

Can you tell me what you think it is?

Answer 2

I will Give you a hint its not A

Answer 3

ok

Answer 4

Or Do you just want an answer?

Answer 5

then i quess b c or d

Answer 6

and yes

Answer 7

well your wrong wrong and right

Answer 8

lol

Answer 9

actually it is A... because they looking for a COUNTERexample to her conjecture

Answer 10

thanks

Answer 11

We are looking to find one that is not true

Answer 12

We are looking to find the one that makes conjecture NOT true.

Answer 13

ahhh its gettin real XD

Answer 14

sally is saying two prime numbers make a prime number.... and the question saying which is saying that its not true and A is saying that its not true.....

Answer 15

xd @ThatGuyDownTheRoad946 @tb3_ty your both talking about the same thing lololol

Answer 16

right but he's saying its not A but it is

Answer 17

alright then i concede. let me know if A is right.

Answer 18

>Which equation is a counterexample to her conjecture?

Select the equation with two prime numbers that are added AND the sum is NOT a prime number. @megax

Answer 19

Which one is it?