A:
Positive:
1 x 23124020319 x 1217053761 x 3790823127 x 18207891159 x 1995171571 x 1471932413 x 958317747 x 29849
Negative:
-1 x -231240203-19 x -12170537-61 x -3790823-127 x -1820789-1159 x -199517-1571 x -147193-2413 x -95831-7747 x -29849
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 231,240,203, 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 | 231,240,203 | |
| -1 | -231,240,203 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 231,240,203.
Example:
1 x 231,240,203 = 231,240,203
and
-1 x -231,240,203 = 231,240,203
Notice both answers equal 231,240,203
With that explanation out of the way, let's continue. Next, we take the number 231,240,203 and divide it by 2:
231,240,203 ÷ 2 = 115,620,101.5
If the quotient is a whole number, then 2 and 115,620,101.5 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 | 231,240,203 | |
| -1 | -231,240,203 |
Now, we try dividing 231,240,203 by 3:
231,240,203 ÷ 3 = 77,080,067.6667
If the quotient is a whole number, then 3 and 77,080,067.6667 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 | 231,240,203 | |
| -1 | -231,240,203 |
Let's try dividing by 4:
231,240,203 ÷ 4 = 57,810,050.75
If the quotient is a whole number, then 4 and 57,810,050.75 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 | 231,240,203 | |
| -1 | 231,240,203 |
If you did it right, you will end up with this table:
| 1 | 19 | 61 | 127 | 1,159 | 1,571 | 2,413 | 7,747 | 29,849 | 95,831 | 147,193 | 199,517 | 1,820,789 | 3,790,823 | 12,170,537 | 231,240,203 |
| -1 | -19 | -61 | -127 | -1,159 | -1,571 | -2,413 | -7,747 | -29,849 | -95,831 | -147,193 | -199,517 | -1,820,789 | -3,790,823 | -12,170,537 | -231,240,203 |
Here are some more numbers to try:
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