A:
Positive:
1 x 120688113 x 9283717 x 7099343 x 28067127 x 9503221 x 5461559 x 2159731 x 1651
Negative:
-1 x -1206881-13 x -92837-17 x -70993-43 x -28067-127 x -9503-221 x -5461-559 x -2159-731 x -1651
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 1,206,881, 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 | 1,206,881 | |
| -1 | -1,206,881 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,206,881.
Example:
1 x 1,206,881 = 1,206,881
and
-1 x -1,206,881 = 1,206,881
Notice both answers equal 1,206,881
With that explanation out of the way, let's continue. Next, we take the number 1,206,881 and divide it by 2:
1,206,881 ÷ 2 = 603,440.5
If the quotient is a whole number, then 2 and 603,440.5 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 | 1,206,881 | |
| -1 | -1,206,881 |
Now, we try dividing 1,206,881 by 3:
1,206,881 ÷ 3 = 402,293.6667
If the quotient is a whole number, then 3 and 402,293.6667 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 | 1,206,881 | |
| -1 | -1,206,881 |
Let's try dividing by 4:
1,206,881 ÷ 4 = 301,720.25
If the quotient is a whole number, then 4 and 301,720.25 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 | 1,206,881 | |
| -1 | 1,206,881 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 43 | 127 | 221 | 559 | 731 | 1,651 | 2,159 | 5,461 | 9,503 | 28,067 | 70,993 | 92,837 | 1,206,881 |
| -1 | -13 | -17 | -43 | -127 | -221 | -559 | -731 | -1,651 | -2,159 | -5,461 | -9,503 | -28,067 | -70,993 | -92,837 | -1,206,881 |
Here are some more numbers to try:
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