Question

how can be proven that sum of two primes except two is always even ?

Answer 1

coz all the primes are odd

Answer 2

and a sum of 2 odd numbers is even ?

Answer 3

oops
lol

Answer 4

what fiddlearound said!

Answer 5

all the primes > 2 are odd
:)

Answer 6

ok but how can be proven this ?

Answer 7

p is odd prime, p = 2k + 1
q is odd prime q=2j + 1

\[p+q=2k+1+2j+1=2(k+j+1)\] is even

Answer 8

what satellite said ^^^
:)

Answer 9

this is like easy ?

Answer 10

trivialy

Answer 11

pretty much all you are proving is that the sum of two odds is even. should be easy right?

Answer 12

trivialy

Answer 13

how you have wrote it , yes ?

Answer 14

yes

Answer 15

trivialy

Answer 16

satellite73 can you telk me please anything from the Riedmann's conjecture ?

Answer 17

trivialy

Answer 18

tell sorry

Answer 19

i have never heard of it

Answer 20

if i please you check it on the wikipedia please

Answer 21

i'm sad i missed this problem
gj fiddle and satellite :(

Answer 22

oooh the reimann hypothesis that says all zeros of reimann zeta function has zeros where real part is 1/2

Answer 23

has all sorts of consequences but i forget what.
the zeta function is not as odd as it looks though i remember that much

Answer 24

sorry yes was riemann

Answer 25

thank you but i not can understanding it too