It is 100000.
99999
100*99999 = 9999900100*99999 = 9999900100*99999 = 9999900100*99999 = 9999900
10000 and 99999
If you consider whole numbers, the largest 5 digit number with repetition is 99999 the smallest 4 digit number without repetition is -9876 Their difference is 99999 - (-9876) = 99999 + 9876 = 109875.
99,999 + 99,999 = 199,998
It is 99999.
90000. With 10 digit palindromes, the last 5 digits are the same as the first 5 digits in reverse, eg 12345 54321. So it comes down to how many 5 digit numbers are there? They are the numbers "10000" to "99999", a total of 99999 - 10000 + 1 = 90000.
It is difficult to interpret exactly what you are trying to ask. If you allow your five digit number to have leading zeroes and do not allow negative numbers, then 00000 - 99999 = -99999 is the smallest number. If you do allow negative 5 digit numbers, then (-99999) - 99999 = -199998 is the smallest number.
99999
Another name for a set of natural numbers is counting numbers.
100000 - 1 = 99999
99999
10,000,800,001 is 99999 times 99999.
100*99999 = 9999900100*99999 = 9999900100*99999 = 9999900100*99999 = 9999900
10000 and 99999
There are 3598 numbers between 10000 and 99999 which are divisible by 25. They are elements of the set of numbers of the form 25*k, where k is an integer between 41 and 3999 (inclusive).
99999. And if all the digits need to be different, it is 98765.