A:
Positive:
1 x 5313478317 x 7590683329 x 1832233947 x 11305273203 x 2617477329 x 16150391363 x 3898379541 x 55691
Negative:
-1 x -531347831-7 x -75906833-29 x -18322339-47 x -11305273-203 x -2617477-329 x -1615039-1363 x -389837-9541 x -55691
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 531,347,831, 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 | 531,347,831 | |
| -1 | -531,347,831 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 531,347,831.
Example:
1 x 531,347,831 = 531,347,831
and
-1 x -531,347,831 = 531,347,831
Notice both answers equal 531,347,831
With that explanation out of the way, let's continue. Next, we take the number 531,347,831 and divide it by 2:
531,347,831 ÷ 2 = 265,673,915.5
If the quotient is a whole number, then 2 and 265,673,915.5 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 | 531,347,831 | |
| -1 | -531,347,831 |
Now, we try dividing 531,347,831 by 3:
531,347,831 ÷ 3 = 177,115,943.6667
If the quotient is a whole number, then 3 and 177,115,943.6667 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 | 531,347,831 | |
| -1 | -531,347,831 |
Let's try dividing by 4:
531,347,831 ÷ 4 = 132,836,957.75
If the quotient is a whole number, then 4 and 132,836,957.75 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 | 531,347,831 | |
| -1 | 531,347,831 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 47 | 203 | 329 | 1,363 | 9,541 | 55,691 | 389,837 | 1,615,039 | 2,617,477 | 11,305,273 | 18,322,339 | 75,906,833 | 531,347,831 |
| -1 | -7 | -29 | -47 | -203 | -329 | -1,363 | -9,541 | -55,691 | -389,837 | -1,615,039 | -2,617,477 | -11,305,273 | -18,322,339 | -75,906,833 | -531,347,831 |
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