A:
Positive:
1 x 2313134117 x 33044773149 x 1552439463 x 499597479 x 4829091043 x 2217773241 x 713713353 x 68987
Negative:
-1 x -231313411-7 x -33044773-149 x -1552439-463 x -499597-479 x -482909-1043 x -221777-3241 x -71371-3353 x -68987
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 231,313,411, 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 | 231,313,411 | |
| -1 | -231,313,411 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 231,313,411.
Example:
1 x 231,313,411 = 231,313,411
and
-1 x -231,313,411 = 231,313,411
Notice both answers equal 231,313,411
With that explanation out of the way, let's continue. Next, we take the number 231,313,411 and divide it by 2:
231,313,411 ÷ 2 = 115,656,705.5
If the quotient is a whole number, then 2 and 115,656,705.5 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 | 231,313,411 | |
| -1 | -231,313,411 |
Now, we try dividing 231,313,411 by 3:
231,313,411 ÷ 3 = 77,104,470.3333
If the quotient is a whole number, then 3 and 77,104,470.3333 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 | 231,313,411 | |
| -1 | -231,313,411 |
Let's try dividing by 4:
231,313,411 ÷ 4 = 57,828,352.75
If the quotient is a whole number, then 4 and 57,828,352.75 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 | 231,313,411 | |
| -1 | 231,313,411 |
If you did it right, you will end up with this table:
| 1 | 7 | 149 | 463 | 479 | 1,043 | 3,241 | 3,353 | 68,987 | 71,371 | 221,777 | 482,909 | 499,597 | 1,552,439 | 33,044,773 | 231,313,411 |
| -1 | -7 | -149 | -463 | -479 | -1,043 | -3,241 | -3,353 | -68,987 | -71,371 | -221,777 | -482,909 | -499,597 | -1,552,439 | -33,044,773 | -231,313,411 |
Here are some more numbers to try:
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