Every number other than 0.
Divisibility is normally defined only for integers. As soon as you consider fractional numbers (such as 90.1), then any number can divide into it. The quotient may also be fractional but you have opened up the possibility of fractional numbers anyway.
22.525
36.04
0.02
901 is a rational number
0.0089
0.0588
0.0255
It's simple! Just divide 106 by 2. The answer is 53. Therefore 106, is not a prime number because it can be divided by more than only 1 and itself.
They are: 1, 2, 17, 34, 53, 106, 901, 1802.
10.6
901
106