A:
Positive:
1 x 390435729 x 13463331 x 12594743 x 90799101 x 38657899 x 43431247 x 31311333 x 2929
Negative:
-1 x -3904357-29 x -134633-31 x -125947-43 x -90799-101 x -38657-899 x -4343-1247 x -3131-1333 x -2929
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 3,904,357, 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 | 3,904,357 | |
| -1 | -3,904,357 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,904,357.
Example:
1 x 3,904,357 = 3,904,357
and
-1 x -3,904,357 = 3,904,357
Notice both answers equal 3,904,357
With that explanation out of the way, let's continue. Next, we take the number 3,904,357 and divide it by 2:
3,904,357 ÷ 2 = 1,952,178.5
If the quotient is a whole number, then 2 and 1,952,178.5 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 | 3,904,357 | |
| -1 | -3,904,357 |
Now, we try dividing 3,904,357 by 3:
3,904,357 ÷ 3 = 1,301,452.3333
If the quotient is a whole number, then 3 and 1,301,452.3333 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 | 3,904,357 | |
| -1 | -3,904,357 |
Let's try dividing by 4:
3,904,357 ÷ 4 = 976,089.25
If the quotient is a whole number, then 4 and 976,089.25 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 | 3,904,357 | |
| -1 | 3,904,357 |
If you did it right, you will end up with this table:
| 1 | 29 | 31 | 43 | 101 | 899 | 1,247 | 1,333 | 2,929 | 3,131 | 4,343 | 38,657 | 90,799 | 125,947 | 134,633 | 3,904,357 |
| -1 | -29 | -31 | -43 | -101 | -899 | -1,247 | -1,333 | -2,929 | -3,131 | -4,343 | -38,657 | -90,799 | -125,947 | -134,633 | -3,904,357 |
Here are some more numbers to try:
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