A:
Positive:
1 x 23121145311 x 21019223229 x 1009657263 x 879131349 x 6624972519 x 917872893 x 799213839 x 60227
Negative:
-1 x -231211453-11 x -21019223-229 x -1009657-263 x -879131-349 x -662497-2519 x -91787-2893 x -79921-3839 x -60227
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 231,211,453, 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 | 231,211,453 | |
| -1 | -231,211,453 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 231,211,453.
Example:
1 x 231,211,453 = 231,211,453
and
-1 x -231,211,453 = 231,211,453
Notice both answers equal 231,211,453
With that explanation out of the way, let's continue. Next, we take the number 231,211,453 and divide it by 2:
231,211,453 ÷ 2 = 115,605,726.5
If the quotient is a whole number, then 2 and 115,605,726.5 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 | 231,211,453 | |
| -1 | -231,211,453 |
Now, we try dividing 231,211,453 by 3:
231,211,453 ÷ 3 = 77,070,484.3333
If the quotient is a whole number, then 3 and 77,070,484.3333 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 | 231,211,453 | |
| -1 | -231,211,453 |
Let's try dividing by 4:
231,211,453 ÷ 4 = 57,802,863.25
If the quotient is a whole number, then 4 and 57,802,863.25 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 | 231,211,453 | |
| -1 | 231,211,453 |
If you did it right, you will end up with this table:
| 1 | 11 | 229 | 263 | 349 | 2,519 | 2,893 | 3,839 | 60,227 | 79,921 | 91,787 | 662,497 | 879,131 | 1,009,657 | 21,019,223 | 231,211,453 |
| -1 | -11 | -229 | -263 | -349 | -2,519 | -2,893 | -3,839 | -60,227 | -79,921 | -91,787 | -662,497 | -879,131 | -1,009,657 | -21,019,223 | -231,211,453 |
Here are some more numbers to try:
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