The decimal 8,580 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 8,580 are:
1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 130, 132, 143, 156, 165, 195, 220, 260, 286, 330, 390, 429, 572, 660, 715, 780, 858, 1430, 1716, 2145, 2860, 4290, 8580
And that is the number factored 8,580 = 2 x 2 x 3 x 5 x 11 x 13 (it is not prime)