Answer:

If I multiply all the numbers in my phone or calculator the product or the answer will be ZERO as the numbers are0,1,2,3,4,5,6,7,8,9. If any number multiplied by zero then the product is also Zero.

Step-by-step explanation

1 X 2 X 3 X 4 X 5 X 6 X 7 X 8 X 9

= 0