8
Firstly, the number must be even. 2520 is perfectly divisible.
120
only 1 is the smallest number so uh yea...
9
The smallest number divisible by first four prime numbers is 2x3x5x7 = 210.
The smallest number which is exactly divisible by the numbers 8 9 and 10 is 360.
The smallest number that is divisible by all the numbers 2 through 12 is 27,720.
4 is the smallest composite number and it is not divisible by the two given numbers.
Every number is divisible by 1. Including negative numbers, that's an infinite list. There is no smallest.
12
510510
The first three prime numbers are 2,3,5. The smallest number divisible by 2,3 and 5 is 30 (2*3*5).