A:
Positive:
1 x 1667481555 x 333496317 x 2382116517 x 980871535 x 476423385 x 1961743119 x 1401245595 x 280249
Negative:
-1 x -166748155-5 x -33349631-7 x -23821165-17 x -9808715-35 x -4764233-85 x -1961743-119 x -1401245-595 x -280249
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 166,748,155, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 166,748,155 | |
| -1 | -166,748,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 166,748,155.
Example:
1 x 166,748,155 = 166,748,155
and
-1 x -166,748,155 = 166,748,155
Notice both answers equal 166,748,155
With that explanation out of the way, let's continue. Next, we take the number 166,748,155 and divide it by 2:
166,748,155 ÷ 2 = 83,374,077.5
If the quotient is a whole number, then 2 and 83,374,077.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 166,748,155 | |
| -1 | -166,748,155 |
Now, we try dividing 166,748,155 by 3:
166,748,155 ÷ 3 = 55,582,718.3333
If the quotient is a whole number, then 3 and 55,582,718.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 166,748,155 | |
| -1 | -166,748,155 |
Let's try dividing by 4:
166,748,155 ÷ 4 = 41,687,038.75
If the quotient is a whole number, then 4 and 41,687,038.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 166,748,155 | |
| -1 | 166,748,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 85 | 119 | 595 | 280,249 | 1,401,245 | 1,961,743 | 4,764,233 | 9,808,715 | 23,821,165 | 33,349,631 | 166,748,155 |
| -1 | -5 | -7 | -17 | -35 | -85 | -119 | -595 | -280,249 | -1,401,245 | -1,961,743 | -4,764,233 | -9,808,715 | -23,821,165 | -33,349,631 | -166,748,155 |
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