The factors is just 1 and 23. The array should be 23 rows/columns of just 1 dot only. Here's an example:
Factors of 5: 1 and 5
Array: •••••
882 is a multiple of 6. if you multiply 6 by 147, you get 882.
The correct answer is C. <span>f(x)=20(35)x</span>