A:
Positive:
1 x 32004553113 x 24618887193 x 1658267199 x 1608269641 x 4992912509 x 1275592587 x 1237138333 x 38407
Negative:
-1 x -320045531-13 x -24618887-193 x -1658267-199 x -1608269-641 x -499291-2509 x -127559-2587 x -123713-8333 x -38407
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 320,045,531, 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 | 320,045,531 | |
| -1 | -320,045,531 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 320,045,531.
Example:
1 x 320,045,531 = 320,045,531
and
-1 x -320,045,531 = 320,045,531
Notice both answers equal 320,045,531
With that explanation out of the way, let's continue. Next, we take the number 320,045,531 and divide it by 2:
320,045,531 ÷ 2 = 160,022,765.5
If the quotient is a whole number, then 2 and 160,022,765.5 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 | 320,045,531 | |
| -1 | -320,045,531 |
Now, we try dividing 320,045,531 by 3:
320,045,531 ÷ 3 = 106,681,843.6667
If the quotient is a whole number, then 3 and 106,681,843.6667 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 | 320,045,531 | |
| -1 | -320,045,531 |
Let's try dividing by 4:
320,045,531 ÷ 4 = 80,011,382.75
If the quotient is a whole number, then 4 and 80,011,382.75 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 | 320,045,531 | |
| -1 | 320,045,531 |
If you did it right, you will end up with this table:
| 1 | 13 | 193 | 199 | 641 | 2,509 | 2,587 | 8,333 | 38,407 | 123,713 | 127,559 | 499,291 | 1,608,269 | 1,658,267 | 24,618,887 | 320,045,531 |
| -1 | -13 | -193 | -199 | -641 | -2,509 | -2,587 | -8,333 | -38,407 | -123,713 | -127,559 | -499,291 | -1,608,269 | -1,658,267 | -24,618,887 | -320,045,531 |
Here are some more numbers to try:
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