The Venn diagram shows three types of numbers: odd (O), even (E), and prime (P). Which is represented by Ø?

Answer:Odd(O)= {.....-101,.......-1,......3,5,.......1001......}Even(E)=  {......-1000,.......-500,.....-100,.....-2,0,.....10,...20,....200,....20000....}Prime (P)=  { .........-1001,-401,...-201,.....-97,....-3,-2,.....2,3,5,7.....101,.....}Now the set Ф = {set having no element}= Neither odd nor even nor prime.                         = All the numbers in the number system is either odd or even                        = Number Ф[ No number has been invented till yet]As you have not shown the venn diagram, 2 is a prime number which is even , 3 is a prime number which is odd .