A:
Positive:
1 x 119980913 x 9229317 x 7057761 x 1966989 x 13481221 x 5429793 x 15131037 x 1157
Negative:
-1 x -1199809-13 x -92293-17 x -70577-61 x -19669-89 x -13481-221 x -5429-793 x -1513-1037 x -1157
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 1,199,809, 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 | 1,199,809 | |
| -1 | -1,199,809 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,199,809.
Example:
1 x 1,199,809 = 1,199,809
and
-1 x -1,199,809 = 1,199,809
Notice both answers equal 1,199,809
With that explanation out of the way, let's continue. Next, we take the number 1,199,809 and divide it by 2:
1,199,809 ÷ 2 = 599,904.5
If the quotient is a whole number, then 2 and 599,904.5 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 | 1,199,809 | |
| -1 | -1,199,809 |
Now, we try dividing 1,199,809 by 3:
1,199,809 ÷ 3 = 399,936.3333
If the quotient is a whole number, then 3 and 399,936.3333 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 | 1,199,809 | |
| -1 | -1,199,809 |
Let's try dividing by 4:
1,199,809 ÷ 4 = 299,952.25
If the quotient is a whole number, then 4 and 299,952.25 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 | 1,199,809 | |
| -1 | 1,199,809 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 61 | 89 | 221 | 793 | 1,037 | 1,157 | 1,513 | 5,429 | 13,481 | 19,669 | 70,577 | 92,293 | 1,199,809 |
| -1 | -13 | -17 | -61 | -89 | -221 | -793 | -1,037 | -1,157 | -1,513 | -5,429 | -13,481 | -19,669 | -70,577 | -92,293 | -1,199,809 |
Here are some more numbers to try:
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