Braille Numerals (occupying a 3 X 2 cell)
#   _ o
    _ o
    o o

1   _ o
    o o
    _ _

2   o _
    _ _
    _ _

3   o o
    _ _
    _ _

4   o o
    _ o
    _ _

5   o _
    _ o
    _ _

6   o o
    o _
    _ _

7   o o
    o o
    _ _

8   o _
    o o
    _ _

9   _ o
    o _
    _ _

Each of the "o"s represents a raised dot.

Example:
67 in braille is: _ o   o o   o o   
                  _ o   o _   o o
                  o o   _ _   _ _

The indicator "#" is necessary to represent a braille number. The "#" is used to distinguish a braille number from a braille alphabet, the representation of 0-9 is identical to the representation of a-z without the "#" infront of a braille number.