I think that it is 4
12
45
It is 2^6 = 64.
3
I think that it is 4
The smallest number that has exactly eight factors is 24. The factors of 1,2,3,4,6,8,12, and 24
The factors of 4 are 1, 2, and 4 .
Oh, dude, the least number with exactly 8 factors is 24. It's like, got factors 1, 2, 3, 4, 6, 8, 12, and 24. So, yeah, that's the magic number with just the right amount of factors to make it cool.
192
6
192
6
4096
12
1024
The smallest number that has exactly three factors is 4.