A:
Positive:
1 x 3217135255 x 643427057 x 4595907517 x 1892432525 x 1286854135 x 919181585 x 3784865119 x 2703475175 x 1838363425 x 756973595 x 5406952975 x 108139
Negative:
-1 x -321713525-5 x -64342705-7 x -45959075-17 x -18924325-25 x -12868541-35 x -9191815-85 x -3784865-119 x -2703475-175 x -1838363-425 x -756973-595 x -540695-2975 x -108139
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 321,713,525, 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 | 321,713,525 | |
| -1 | -321,713,525 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 321,713,525.
Example:
1 x 321,713,525 = 321,713,525
and
-1 x -321,713,525 = 321,713,525
Notice both answers equal 321,713,525
With that explanation out of the way, let's continue. Next, we take the number 321,713,525 and divide it by 2:
321,713,525 ÷ 2 = 160,856,762.5
If the quotient is a whole number, then 2 and 160,856,762.5 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 | 321,713,525 | |
| -1 | -321,713,525 |
Now, we try dividing 321,713,525 by 3:
321,713,525 ÷ 3 = 107,237,841.6667
If the quotient is a whole number, then 3 and 107,237,841.6667 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 | 321,713,525 | |
| -1 | -321,713,525 |
Let's try dividing by 4:
321,713,525 ÷ 4 = 80,428,381.25
If the quotient is a whole number, then 4 and 80,428,381.25 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 | 321,713,525 | |
| -1 | 321,713,525 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 25 | 35 | 85 | 119 | 175 | 425 | 595 | 2,975 | 108,139 | 540,695 | 756,973 | 1,838,363 | 2,703,475 | 3,784,865 | 9,191,815 | 12,868,541 | 18,924,325 | 45,959,075 | 64,342,705 | 321,713,525 |
| -1 | -5 | -7 | -17 | -25 | -35 | -85 | -119 | -175 | -425 | -595 | -2,975 | -108,139 | -540,695 | -756,973 | -1,838,363 | -2,703,475 | -3,784,865 | -9,191,815 | -12,868,541 | -18,924,325 | -45,959,075 | -64,342,705 | -321,713,525 |
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