There is no formula. If there were, anyone who knew it would win every time.
Yes.
Just one. In combinatorials, the order of the digits in a combination does not make a difference.Just one. In combinatorials, the order of the digits in a combination does not make a difference.Just one. In combinatorials, the order of the digits in a combination does not make a difference.Just one. In combinatorials, the order of the digits in a combination does not make a difference.
1 in 4,782,969
Two to the power of the amount of available digits.
There are different numbers of combinations for groups of different sizes out of 9: 1 combination of 9 digits 9 combinations of 1 digit and of 8 digits 36 combinations of 2 digits and of 7 digits 84 combinations of 3 digits and of 6 digits 126 combinations of 4 digits and of 5 digits 255 combinations in all.
Analog computing mechanisms can reach a solution much faster than digital computing mechanisms can for the same problem; but to get more digits of accuracy, analog computing mechanisms require expensive high-precision, low-drift, temperature-stable components, while digital computing mechanisms can be expanded inexpensively to as many digits as desired.
Yes.
WRONG.
Just one. In combinatorials, the order of the digits in a combination does not make a difference.Just one. In combinatorials, the order of the digits in a combination does not make a difference.Just one. In combinatorials, the order of the digits in a combination does not make a difference.Just one. In combinatorials, the order of the digits in a combination does not make a difference.
1 in 4,782,969
10,000,000 to one.
Two to the power of the amount of available digits.
There are different numbers of combinations for groups of different sizes out of 9: 1 combination of 9 digits 9 combinations of 1 digit and of 8 digits 36 combinations of 2 digits and of 7 digits 84 combinations of 3 digits and of 6 digits 126 combinations of 4 digits and of 5 digits 255 combinations in all.
Probably not. Some of the digits are probably check digits, calculated from the other digits, based on some formula. This means that if any one of the digits changes, another digits - or other digits - have to change, too.
Mostly, they are just an account number. Some of the digits, however, are "check digits." That is, they come from some mathematical formula being appled to some of the other digits. That makes it near impossible to simply make up a string of 16 digits that are a valid credit card number. Of course, the location of the check digits and the formula which generates them are carefully guarded secrets.
16 The current hexadecimal system was first introduced to the computing world in 1963 by IBM.
Yuo can make only one combination of 30 digits using 30 digits.