-85
2200
120
105
2468101214161820222426283032343638404244464850525456586062646866707274767880828486889092949698100
27
-11
141
115
-5 and -10
4 and 11.
If your question is: What multiplies to 15? Answer: (1 x 15) (3 x 5)
As a product of its prime factors: 2*2*5*5 = 100