The decimal 5,210 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 5,210 are:
1, 2, 5, 10, 521, 1042, 2605, 5210
And that is the number factored 5,210 = 2 x 5 x 521 (it is not prime)