The decimal 6,536 Number in the Braille Alphabet is
Número = Number sign. Means that it opens a number instead of a sequence of letters.
Milhar = Thousands sign. It is an option to use it.
All natural divisors of 6,536 are:
1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3268, 6536
And that is the number factored 6,536 = 2 x 2 x 2 x 19 x 43 (it is not prime)