A:
Positive:
1 x 23103001343 x 5372791107 x 2159159149 x 1550537337 x 6855494601 x 502136407 x 3605914491 x 15943
Negative:
-1 x -231030013-43 x -5372791-107 x -2159159-149 x -1550537-337 x -685549-4601 x -50213-6407 x -36059-14491 x -15943
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 231,030,013, 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 | 231,030,013 | |
| -1 | -231,030,013 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 231,030,013.
Example:
1 x 231,030,013 = 231,030,013
and
-1 x -231,030,013 = 231,030,013
Notice both answers equal 231,030,013
With that explanation out of the way, let's continue. Next, we take the number 231,030,013 and divide it by 2:
231,030,013 ÷ 2 = 115,515,006.5
If the quotient is a whole number, then 2 and 115,515,006.5 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 | 231,030,013 | |
| -1 | -231,030,013 |
Now, we try dividing 231,030,013 by 3:
231,030,013 ÷ 3 = 77,010,004.3333
If the quotient is a whole number, then 3 and 77,010,004.3333 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 | 231,030,013 | |
| -1 | -231,030,013 |
Let's try dividing by 4:
231,030,013 ÷ 4 = 57,757,503.25
If the quotient is a whole number, then 4 and 57,757,503.25 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 | 231,030,013 | |
| -1 | 231,030,013 |
If you did it right, you will end up with this table:
| 1 | 43 | 107 | 149 | 337 | 4,601 | 6,407 | 14,491 | 15,943 | 36,059 | 50,213 | 685,549 | 1,550,537 | 2,159,159 | 5,372,791 | 231,030,013 |
| -1 | -43 | -107 | -149 | -337 | -4,601 | -6,407 | -14,491 | -15,943 | -36,059 | -50,213 | -685,549 | -1,550,537 | -2,159,159 | -5,372,791 | -231,030,013 |
Here are some more numbers to try:
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