Question

Find three different two-digit primes where the average of any two is a prime, and the average of all three is a prime.

Answer 1

The only even prime number is 2. Is this even possible? If you take 2 digit numbers and then add them together to get an even number, how are you going to end up with 2 as the average?

Answer 2

your wrong

Answer 3

There are more then one keep trying

Answer 4

hoblos you got this :)

Answer 5

hmm got 2, 17 and 29

Answer 6

@gopeder: I think that you already know the answer and you are just trying to test us?

Answer 7

Never :P

Answer 8

11, 47, and 71

Answer 9

You got it foolformath

Answer 10

what no good question medal :P jk but really congrats

Answer 11

haha, I think I have seen this question before, but thanks :)

Answer 12

Im good at this stuff but not geometry lol

Answer 13

this was a hard one :(

Answer 14

Just a new way of thinking :)

Answer 15

i only got the first part satisfied with 17, 29, and 57

Answer 16

still a major part :)