1,003
The least possible integer is -98765432. The least possible positive integer is 10234567.
2
4
1111, unless you allow negative number. In that case, the answer is -9999.
One digit. 1000 - 999
The least possible integer is -98765432. The least possible positive integer is 10234567.
2
In order to make the smallest possible number with a set of digits, you want the least valued number in the greatest valued place. For 5 digits, you would want the least digit, 0, in the ten thousands place. You would then want the second least digit, 3, in the thousands place, and so on. For the digits 0,3,5,7,9 the smallest possible number would therefore be 03,579 or 3,579.
4
1111, unless you allow negative number. In that case, the answer is -9999.
1479
One digit. 1000 - 999
Any 5-digit number is greater than a 4-digit one.
10234
1023
1023
0.124