10,234 is the smallest 5-digit number meeting your restrictions.
102345
1023459
It is 0.123459
12345 but if you can use a decimal, then 0.1234 would be the smallest possible number.
10234
1,023,456,789
86420
A repeating decimal is a number expressed in decimal form in which, after a finite number of miscellaneous digits, the number continues with a string of a finite number of digits which repeats itself without end.
1254
86420
9,876,543
Two versions of this question have been merged ... the one that asks forthe smallest 5-digit number, and the one that asks for the largest.If we're talking integers (whole numbers), then-- the largest 5-digit number with no repeating digits is 98,765 .-- the smallest one is 10,234 .-- If decimals are included, then the largest number is the same,but the smallest one is .01234 .