A:
Positive:
1 x 8720537 x 12457913 x 6708137 x 2356949 x 1779791 x 9583259 x 3367481 x 1813637 x 1369
Negative:
-1 x -872053-7 x -124579-13 x -67081-37 x -23569-49 x -17797-91 x -9583-259 x -3367-481 x -1813-637 x -1369
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 872,053, 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 | 872,053 | |
| -1 | -872,053 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 872,053.
Example:
1 x 872,053 = 872,053
and
-1 x -872,053 = 872,053
Notice both answers equal 872,053
With that explanation out of the way, let's continue. Next, we take the number 872,053 and divide it by 2:
872,053 ÷ 2 = 436,026.5
If the quotient is a whole number, then 2 and 436,026.5 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 | 872,053 | |
| -1 | -872,053 |
Now, we try dividing 872,053 by 3:
872,053 ÷ 3 = 290,684.3333
If the quotient is a whole number, then 3 and 290,684.3333 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 | 872,053 | |
| -1 | -872,053 |
Let's try dividing by 4:
872,053 ÷ 4 = 218,013.25
If the quotient is a whole number, then 4 and 218,013.25 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 | 872,053 | |
| -1 | 872,053 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 37 | 49 | 91 | 259 | 481 | 637 | 1,369 | 1,813 | 3,367 | 9,583 | 17,797 | 23,569 | 67,081 | 124,579 | 872,053 |
| -1 | -7 | -13 | -37 | -49 | -91 | -259 | -481 | -637 | -1,369 | -1,813 | -3,367 | -9,583 | -17,797 | -23,569 | -67,081 | -124,579 | -872,053 |
Here are some more numbers to try:
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