A:
Positive:
1 x 2899841355 x 579968277 x 4142630535 x 8285261331 x 8760851655 x 1752172317 x 12515511585 x 25031
Negative:
-1 x -289984135-5 x -57996827-7 x -41426305-35 x -8285261-331 x -876085-1655 x -175217-2317 x -125155-11585 x -25031
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 289,984,135, 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 | 289,984,135 | |
| -1 | -289,984,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 289,984,135.
Example:
1 x 289,984,135 = 289,984,135
and
-1 x -289,984,135 = 289,984,135
Notice both answers equal 289,984,135
With that explanation out of the way, let's continue. Next, we take the number 289,984,135 and divide it by 2:
289,984,135 ÷ 2 = 144,992,067.5
If the quotient is a whole number, then 2 and 144,992,067.5 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 | 289,984,135 | |
| -1 | -289,984,135 |
Now, we try dividing 289,984,135 by 3:
289,984,135 ÷ 3 = 96,661,378.3333
If the quotient is a whole number, then 3 and 96,661,378.3333 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 | 289,984,135 | |
| -1 | -289,984,135 |
Let's try dividing by 4:
289,984,135 ÷ 4 = 72,496,033.75
If the quotient is a whole number, then 4 and 72,496,033.75 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 | 289,984,135 | |
| -1 | 289,984,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 331 | 1,655 | 2,317 | 11,585 | 25,031 | 125,155 | 175,217 | 876,085 | 8,285,261 | 41,426,305 | 57,996,827 | 289,984,135 |
| -1 | -5 | -7 | -35 | -331 | -1,655 | -2,317 | -11,585 | -25,031 | -125,155 | -175,217 | -876,085 | -8,285,261 | -41,426,305 | -57,996,827 | -289,984,135 |
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