There are six!
6 if order doesn't matter
Four. Four. Four. Four.
Fifty.
3,000,450 there are four zeros
There are six!
Infinitely many.
6 if order doesn't matter
Four. Four. Four. Four.
Four of them.
FIFTY .
Fifty.
fifty nine
fifty-four.
Many bank cards have different structures to their numbers. Some will be longer and have different breaks. The typical is 16 numbers broken into four brackets of four numbers. Example: 1111 2222 3333 4444
Infinity
3,000,450 there are four zeros