Numbers are written the same as in English; so ثلاث is 3 and أربع is 4. There is an original system of writing the numerals (shown below) but it has became obsolete, this system was adopted from India and survives in Persian and Urdu; the original system went change too, by the 18th century printers in Lebanon were using the form ٤ for ۴, and ٥ for ۵.