A:
Positive:
1 x 3202134355 x 6404268767 x 4779305181 x 1769135335 x 955861905 x 3538275281 x 6063512127 x 26405
Negative:
-1 x -320213435-5 x -64042687-67 x -4779305-181 x -1769135-335 x -955861-905 x -353827-5281 x -60635-12127 x -26405
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 320,213,435, 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 | 320,213,435 | |
| -1 | -320,213,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 320,213,435.
Example:
1 x 320,213,435 = 320,213,435
and
-1 x -320,213,435 = 320,213,435
Notice both answers equal 320,213,435
With that explanation out of the way, let's continue. Next, we take the number 320,213,435 and divide it by 2:
320,213,435 ÷ 2 = 160,106,717.5
If the quotient is a whole number, then 2 and 160,106,717.5 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 | 320,213,435 | |
| -1 | -320,213,435 |
Now, we try dividing 320,213,435 by 3:
320,213,435 ÷ 3 = 106,737,811.6667
If the quotient is a whole number, then 3 and 106,737,811.6667 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 | 320,213,435 | |
| -1 | -320,213,435 |
Let's try dividing by 4:
320,213,435 ÷ 4 = 80,053,358.75
If the quotient is a whole number, then 4 and 80,053,358.75 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 | 320,213,435 | |
| -1 | 320,213,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 181 | 335 | 905 | 5,281 | 12,127 | 26,405 | 60,635 | 353,827 | 955,861 | 1,769,135 | 4,779,305 | 64,042,687 | 320,213,435 |
| -1 | -5 | -67 | -181 | -335 | -905 | -5,281 | -12,127 | -26,405 | -60,635 | -353,827 | -955,861 | -1,769,135 | -4,779,305 | -64,042,687 | -320,213,435 |
Here are some more numbers to try:
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