A:
Positive:
1 x 178731655 x 357463343 x 41565559 x 302935215 x 83131295 x 605871409 x 126852537 x 7045
Negative:
-1 x -17873165-5 x -3574633-43 x -415655-59 x -302935-215 x -83131-295 x -60587-1409 x -12685-2537 x -7045
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 17,873,165, 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 | 17,873,165 | |
| -1 | -17,873,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,873,165.
Example:
1 x 17,873,165 = 17,873,165
and
-1 x -17,873,165 = 17,873,165
Notice both answers equal 17,873,165
With that explanation out of the way, let's continue. Next, we take the number 17,873,165 and divide it by 2:
17,873,165 ÷ 2 = 8,936,582.5
If the quotient is a whole number, then 2 and 8,936,582.5 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 | 17,873,165 | |
| -1 | -17,873,165 |
Now, we try dividing 17,873,165 by 3:
17,873,165 ÷ 3 = 5,957,721.6667
If the quotient is a whole number, then 3 and 5,957,721.6667 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 | 17,873,165 | |
| -1 | -17,873,165 |
Let's try dividing by 4:
17,873,165 ÷ 4 = 4,468,291.25
If the quotient is a whole number, then 4 and 4,468,291.25 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 | 17,873,165 | |
| -1 | 17,873,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 59 | 215 | 295 | 1,409 | 2,537 | 7,045 | 12,685 | 60,587 | 83,131 | 302,935 | 415,655 | 3,574,633 | 17,873,165 |
| -1 | -5 | -43 | -59 | -215 | -295 | -1,409 | -2,537 | -7,045 | -12,685 | -60,587 | -83,131 | -302,935 | -415,655 | -3,574,633 | -17,873,165 |
Here are some more numbers to try:
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