-99
192
Three digits.
8 digits will generate over 40,000 permutations.
If the digits can be used more than once, then 900. If not, then 648.
Octal (base 8) uses the digits 0 - 7.
There are 4*3 = 12 such numbers.
24.
Three digits.
381 digits.
They are called decimal digits.
There are 10 digits in our number system. The symbols 0,1,2,3,4,5,6,7,8,and 9 are the digits used to create numbers.
It is usually 4 digits. Some banks offer pin numbers that are more than 4 digits long.
Assuming each of the given digits can be used only once, the answer is 24. If not, the answer is infinity.
digits
Not 2 numbers - 2 digits. The digits 0 and 1.
8 digits will generate over 40,000 permutations.
Any pair of digits (not including 0), can be used to generate 14 four-digit numbers. If one of the digits is 0, only seven will start with a non-zero digit.
167 may be written as one hundred sixty-seven. A hyphen should always be used between the tens and units digits when writing out numbers, but never between the hundreds and tens digits.