A:
Positive:
1 x 184312317 x 263303313 x 141778767 x 27509391 x 202541469 x 39299871 x 211613023 x 6097
Negative:
-1 x -18431231-7 x -2633033-13 x -1417787-67 x -275093-91 x -202541-469 x -39299-871 x -21161-3023 x -6097
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 18,431,231, 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 | 18,431,231 | |
| -1 | -18,431,231 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,431,231.
Example:
1 x 18,431,231 = 18,431,231
and
-1 x -18,431,231 = 18,431,231
Notice both answers equal 18,431,231
With that explanation out of the way, let's continue. Next, we take the number 18,431,231 and divide it by 2:
18,431,231 ÷ 2 = 9,215,615.5
If the quotient is a whole number, then 2 and 9,215,615.5 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 | 18,431,231 | |
| -1 | -18,431,231 |
Now, we try dividing 18,431,231 by 3:
18,431,231 ÷ 3 = 6,143,743.6667
If the quotient is a whole number, then 3 and 6,143,743.6667 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 | 18,431,231 | |
| -1 | -18,431,231 |
Let's try dividing by 4:
18,431,231 ÷ 4 = 4,607,807.75
If the quotient is a whole number, then 4 and 4,607,807.75 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 | 18,431,231 | |
| -1 | 18,431,231 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 67 | 91 | 469 | 871 | 3,023 | 6,097 | 21,161 | 39,299 | 202,541 | 275,093 | 1,417,787 | 2,633,033 | 18,431,231 |
| -1 | -7 | -13 | -67 | -91 | -469 | -871 | -3,023 | -6,097 | -21,161 | -39,299 | -202,541 | -275,093 | -1,417,787 | -2,633,033 | -18,431,231 |
Here are some more numbers to try:
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