A:
Positive:
1 x 61115515919 x 3216606137 x 16517707617 x 990527703 x 8693531409 x 43375111723 x 5213322829 x 26771
Negative:
-1 x -611155159-19 x -32166061-37 x -16517707-617 x -990527-703 x -869353-1409 x -433751-11723 x -52133-22829 x -26771
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 611,155,159, 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 | 611,155,159 | |
| -1 | -611,155,159 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 611,155,159.
Example:
1 x 611,155,159 = 611,155,159
and
-1 x -611,155,159 = 611,155,159
Notice both answers equal 611,155,159
With that explanation out of the way, let's continue. Next, we take the number 611,155,159 and divide it by 2:
611,155,159 ÷ 2 = 305,577,579.5
If the quotient is a whole number, then 2 and 305,577,579.5 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 | 611,155,159 | |
| -1 | -611,155,159 |
Now, we try dividing 611,155,159 by 3:
611,155,159 ÷ 3 = 203,718,386.3333
If the quotient is a whole number, then 3 and 203,718,386.3333 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 | 611,155,159 | |
| -1 | -611,155,159 |
Let's try dividing by 4:
611,155,159 ÷ 4 = 152,788,789.75
If the quotient is a whole number, then 4 and 152,788,789.75 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 | 611,155,159 | |
| -1 | 611,155,159 |
If you did it right, you will end up with this table:
| 1 | 19 | 37 | 617 | 703 | 1,409 | 11,723 | 22,829 | 26,771 | 52,133 | 433,751 | 869,353 | 990,527 | 16,517,707 | 32,166,061 | 611,155,159 |
| -1 | -19 | -37 | -617 | -703 | -1,409 | -11,723 | -22,829 | -26,771 | -52,133 | -433,751 | -869,353 | -990,527 | -16,517,707 | -32,166,061 | -611,155,159 |
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