The smallest number with exactly 36 factors is 1260. The factors are: 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, and 1260.
It is 2^6 = 64.
3
12
I think that it is 4
45
It is in fact 72
4? the factors of 4 are 1,4 and 2
It is 2^6 = 64.
3
The smallest number that has exactly eight factors is 24. The factors of 1,2,3,4,6,8,12, and 24
192
6
192
6
4096
12
I think that it is 4