As a product of its prime factors: 2 * 2 * 5 * 5 = 100
With 4 different numbers, 24.
1234
12 numbers
-1
There are 192.
0288
256!
-7
what is the greatest 4-digit number you can make with the digit 0,1,2,3, and 4
mvgmhlkblzssrn
They are: 4*4 = 16
4! + 4 + 4/4