A:
Positive:
1 x 23133124311 x 2103011313 x 17794711143 x 1617701373 x 6201914103 x 563814337 x 533394849 x 47707
Negative:
-1 x -231331243-11 x -21030113-13 x -17794711-143 x -1617701-373 x -620191-4103 x -56381-4337 x -53339-4849 x -47707
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 231,331,243, 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 | 231,331,243 | |
| -1 | -231,331,243 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 231,331,243.
Example:
1 x 231,331,243 = 231,331,243
and
-1 x -231,331,243 = 231,331,243
Notice both answers equal 231,331,243
With that explanation out of the way, let's continue. Next, we take the number 231,331,243 and divide it by 2:
231,331,243 ÷ 2 = 115,665,621.5
If the quotient is a whole number, then 2 and 115,665,621.5 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 | 231,331,243 | |
| -1 | -231,331,243 |
Now, we try dividing 231,331,243 by 3:
231,331,243 ÷ 3 = 77,110,414.3333
If the quotient is a whole number, then 3 and 77,110,414.3333 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 | 231,331,243 | |
| -1 | -231,331,243 |
Let's try dividing by 4:
231,331,243 ÷ 4 = 57,832,810.75
If the quotient is a whole number, then 4 and 57,832,810.75 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 | 231,331,243 | |
| -1 | 231,331,243 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 143 | 373 | 4,103 | 4,337 | 4,849 | 47,707 | 53,339 | 56,381 | 620,191 | 1,617,701 | 17,794,711 | 21,030,113 | 231,331,243 |
| -1 | -11 | -13 | -143 | -373 | -4,103 | -4,337 | -4,849 | -47,707 | -53,339 | -56,381 | -620,191 | -1,617,701 | -17,794,711 | -21,030,113 | -231,331,243 |
Here are some more numbers to try:
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