A:
Positive:
1 x 16871655 x 33743317 x 9924523 x 7335585 x 19849115 x 14671391 x 4315863 x 1955
Negative:
-1 x -1687165-5 x -337433-17 x -99245-23 x -73355-85 x -19849-115 x -14671-391 x -4315-863 x -1955
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 1,687,165, 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 | 1,687,165 | |
| -1 | -1,687,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,687,165.
Example:
1 x 1,687,165 = 1,687,165
and
-1 x -1,687,165 = 1,687,165
Notice both answers equal 1,687,165
With that explanation out of the way, let's continue. Next, we take the number 1,687,165 and divide it by 2:
1,687,165 ÷ 2 = 843,582.5
If the quotient is a whole number, then 2 and 843,582.5 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 | 1,687,165 | |
| -1 | -1,687,165 |
Now, we try dividing 1,687,165 by 3:
1,687,165 ÷ 3 = 562,388.3333
If the quotient is a whole number, then 3 and 562,388.3333 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 | 1,687,165 | |
| -1 | -1,687,165 |
Let's try dividing by 4:
1,687,165 ÷ 4 = 421,791.25
If the quotient is a whole number, then 4 and 421,791.25 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 | 1,687,165 | |
| -1 | 1,687,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 23 | 85 | 115 | 391 | 863 | 1,955 | 4,315 | 14,671 | 19,849 | 73,355 | 99,245 | 337,433 | 1,687,165 |
| -1 | -5 | -17 | -23 | -85 | -115 | -391 | -863 | -1,955 | -4,315 | -14,671 | -19,849 | -73,355 | -99,245 | -337,433 | -1,687,165 |
Here are some more numbers to try:
Try the factor calculator