Lucky Birthday Number

I have just read an interesting article about Birthday in "Class out" magazine published by the British Council.

Calculate Your Lucky Birthday Number

e.g. Date of Birth is 11/08/1974 [Day -11; Month - 08; Year - 1974]
>Add together all the numbers [11+8+1974=1993]
>Now add the total together [ 1+9+9+3=22]
>Keep adding the totals unitl you get a single digit [2+2=4]
>So, the lucky number is 4
>Any numbers that add up to 4 are also the lucky numbers [13(1+3); 22(2+2)]

My Birthday Lucky Number is 2!