[polirudb]

Every even number has at least two letters in it.

[bobmarc]

Strange but when I asked google same question I got a different result...No, all odd numbers do not have the letter "e" in their English spelling. While it's true that all odd numbers from 1 to 9 contain the letter "e" (one, three, five, seven, nine), and many other odd numbers also contain "e" (eleven, thirteen, etc.), there are examples of odd numbers that do not have "e" when expressed in a different base.