-162
-18*-13 = 234
9
9 x 18 = 162
2
37
If an even number of negative factors are multiplied together (such as 18 factors), the answer will be positive. If there are an odd number of negative factors, the answer will be negative.
9(-2)= -18
10/9
6 X -3 = -18 so negative three.
273
18 multiplied by 9 is 162.
The answer is 9.