| Numbers in mobiles in spain?
its not 699,999,999
Since the first number is 6, there are only 8 more numbers with a possibility of 10 numbers for each (0-9, with 0 being an option).
So the answer is 6x10x10x10x10x10x10x10x10
Which give you 600 million number combinations.
If the first numberwere not 6, and could be any of the 10, there would be a billion possibilities |