Verified Answer :

The answer is 11 x 6=66
That 11, 6, and 1 are some of the factors of 66. 
So we use 11 and 6 and we get 66. 
This is only the easiest factors we can multiply. 
There are many more factors that you can multiply together and get 66. 

AL2006


You have several choices ... 16 of them I think:

1 x 66 .
2 x 33 .
3 x 22 .
6 x 11 .

-- Each of the same ones, with both numbers negative.

-- Each of the same ones, with the numbers in the opposite direction

-- Each of the same ones, with the numbers negative
   AND in the opposite direction.