There are 5000 such strings.
A number is made up from digits in the numeral system. We often use the decimal system in which we use 10 digits, In writing the any number, many digits are used, even repitation of digits. when we write any number using the digits, the last digit ( from right side ) in that number is called unit digit. for example in the number 9814868980, here 0 is called unit digit.
None, because you do not have three even digits. None, because you do not have three even digits. None, because you do not have three even digits. None, because you do not have three even digits.
The greatest 4-digit number with no repeated digits is... 9876
804
99999999
There are 5760 such numbers.
12345 but if you can use a decimal, then 0.1234 would be the smallest possible number.
26.
81
There is no such number. If the four digits are even, the entire number is even, not odd.
1,024