1024
If you're not allowed to use each digit more than once, then you can't make any 5-digit numbers, since you only have 4 digits to use.
I you can use each numeral (1, 2, 3, or 4) as many times as you want, then there are 4 ways to fill each position in the 5-digit number. The total number of possibilities is 45 = 1024.
Infinitely many.
90000
Infinite
INFINITE
59
24
The sequence of whole numbers goes on and on and on - there is no last whole number. The set of whole numbers is thus infinite.
7
There are 10 whole numbers in 10 to 19.
there are 89 twodigits in whole numbers
there are 899 whole numbers that have three digits.
Using 1, 2, and 3, you can make 27 whole numbers.