A:
Positive:
1 x 4039220911 x 367201913 x 310709323 x 1756183143 x 282463253 x 159653299 x 1350913289 x 12281
Negative:
-1 x -40392209-11 x -3672019-13 x -3107093-23 x -1756183-143 x -282463-253 x -159653-299 x -135091-3289 x -12281
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 40,392,209, 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 | 40,392,209 | |
| -1 | -40,392,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,392,209.
Example:
1 x 40,392,209 = 40,392,209
and
-1 x -40,392,209 = 40,392,209
Notice both answers equal 40,392,209
With that explanation out of the way, let's continue. Next, we take the number 40,392,209 and divide it by 2:
40,392,209 ÷ 2 = 20,196,104.5
If the quotient is a whole number, then 2 and 20,196,104.5 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 | 40,392,209 | |
| -1 | -40,392,209 |
Now, we try dividing 40,392,209 by 3:
40,392,209 ÷ 3 = 13,464,069.6667
If the quotient is a whole number, then 3 and 13,464,069.6667 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 | 40,392,209 | |
| -1 | -40,392,209 |
Let's try dividing by 4:
40,392,209 ÷ 4 = 10,098,052.25
If the quotient is a whole number, then 4 and 10,098,052.25 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 | 40,392,209 | |
| -1 | 40,392,209 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 23 | 143 | 253 | 299 | 3,289 | 12,281 | 135,091 | 159,653 | 282,463 | 1,756,183 | 3,107,093 | 3,672,019 | 40,392,209 |
| -1 | -11 | -13 | -23 | -143 | -253 | -299 | -3,289 | -12,281 | -135,091 | -159,653 | -282,463 | -1,756,183 | -3,107,093 | -3,672,019 | -40,392,209 |
Here are some more numbers to try:
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