Using only multiplication it is not possible.
101
Only if you subtract three.
13
(4*4)-(4/4)
It could be: 4+40+40 = 6
4 - (4+4) x 4
It could be: 4+4+4-40 = 11
4*4 - 4/4 = 16 - 1 = 15.
One possible solution is: 4.4 + 4 / .4 = 21
44 minus the square root of 4 divided by point 4
4(4 + 4/4) = 4(4 + 1) = 20
4 + 4 + (4/4).