A:
Positive:
1 x 32043220719 x 1686485361 x 525298783 x 38606291159 x 2764731577 x 2031913331 x 961975063 x 63289
Negative:
-1 x -320432207-19 x -16864853-61 x -5252987-83 x -3860629-1159 x -276473-1577 x -203191-3331 x -96197-5063 x -63289
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 320,432,207, 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 | 320,432,207 | |
| -1 | -320,432,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 320,432,207.
Example:
1 x 320,432,207 = 320,432,207
and
-1 x -320,432,207 = 320,432,207
Notice both answers equal 320,432,207
With that explanation out of the way, let's continue. Next, we take the number 320,432,207 and divide it by 2:
320,432,207 ÷ 2 = 160,216,103.5
If the quotient is a whole number, then 2 and 160,216,103.5 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 | 320,432,207 | |
| -1 | -320,432,207 |
Now, we try dividing 320,432,207 by 3:
320,432,207 ÷ 3 = 106,810,735.6667
If the quotient is a whole number, then 3 and 106,810,735.6667 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 | 320,432,207 | |
| -1 | -320,432,207 |
Let's try dividing by 4:
320,432,207 ÷ 4 = 80,108,051.75
If the quotient is a whole number, then 4 and 80,108,051.75 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 | 320,432,207 | |
| -1 | 320,432,207 |
If you did it right, you will end up with this table:
| 1 | 19 | 61 | 83 | 1,159 | 1,577 | 3,331 | 5,063 | 63,289 | 96,197 | 203,191 | 276,473 | 3,860,629 | 5,252,987 | 16,864,853 | 320,432,207 |
| -1 | -19 | -61 | -83 | -1,159 | -1,577 | -3,331 | -5,063 | -63,289 | -96,197 | -203,191 | -276,473 | -3,860,629 | -5,252,987 | -16,864,853 | -320,432,207 |
Here are some more numbers to try:
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