there is no limit.
5
depends on how many people are locked up 7 or 8 numbers
16
Repaper is the palindrome meaning put up wallpaper again.
They make up the Real numbers.
16
Add all of the numbers up, and then divide that result by how many numbers there were, e.g. 1,2,3,4,5. Added up they make 15. As there are five numbers there, you divide 15 by 5, and you get 3. Voila.
On Earth to Make the Numbers Up was created on 2000-10-02.
2 x 7 x 13
it is numbers to make up the answer
There are many different combinations. One example is two and 31.
2 (10 if you count the ones that make up the other numbers.)