A:
Positive:
1 x 16881842 x 8440923 x 5627284 x 4220466 x 2813648 x 2110239 x 18757612 x 14068218 x 9378824 x 7034136 x 4689472 x 23447
Negative:
-1 x -1688184-2 x -844092-3 x -562728-4 x -422046-6 x -281364-8 x -211023-9 x -187576-12 x -140682-18 x -93788-24 x -70341-36 x -46894-72 x -23447
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 1,688,184, 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 | 1,688,184 | |
| -1 | -1,688,184 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,688,184.
Example:
1 x 1,688,184 = 1,688,184
and
-1 x -1,688,184 = 1,688,184
Notice both answers equal 1,688,184
With that explanation out of the way, let's continue. Next, we take the number 1,688,184 and divide it by 2:
1,688,184 ÷ 2 = 844,092
If the quotient is a whole number, then 2 and 844,092 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 844,092 | 1,688,184 | |
| -1 | -2 | -844,092 | -1,688,184 |
Now, we try dividing 1,688,184 by 3:
1,688,184 ÷ 3 = 562,728
If the quotient is a whole number, then 3 and 562,728 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 3 | 562,728 | 844,092 | 1,688,184 | |
| -1 | -2 | -3 | -562,728 | -844,092 | -1,688,184 |
Let's try dividing by 4:
1,688,184 ÷ 4 = 422,046
If the quotient is a whole number, then 4 and 422,046 are factors. In this case, the quotient is a whole number. Write them in the table inside the other two factors like the below example. Don't forget to write the negative numbers too!
Here is what our table should look like at this step:
| 1 | 2 | 3 | 4 | 422,046 | 562,728 | 844,092 | 1,688,184 | |
| -1 | -2 | -3 | -4 | -422,046 | -562,728 | -844,092 | 1,688,184 |
If you did it right, you will end up with this table:
| 1 | 2 | 3 | 4 | 6 | 8 | 9 | 12 | 18 | 24 | 36 | 72 | 23,447 | 46,894 | 70,341 | 93,788 | 140,682 | 187,576 | 211,023 | 281,364 | 422,046 | 562,728 | 844,092 | 1,688,184 |
| -1 | -2 | -3 | -4 | -6 | -8 | -9 | -12 | -18 | -24 | -36 | -72 | -23,447 | -46,894 | -70,341 | -93,788 | -140,682 | -187,576 | -211,023 | -281,364 | -422,046 | -562,728 | -844,092 | -1,688,184 |
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