A:
Positive:
1 x 6116433055 x 1223286617 x 8737761513 x 4704948535 x 1747552365 x 940989791 x 6721355455 x 1344271
Negative:
-1 x -611643305-5 x -122328661-7 x -87377615-13 x -47049485-35 x -17475523-65 x -9409897-91 x -6721355-455 x -1344271
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 611,643,305, 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 | 611,643,305 | |
| -1 | -611,643,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 611,643,305.
Example:
1 x 611,643,305 = 611,643,305
and
-1 x -611,643,305 = 611,643,305
Notice both answers equal 611,643,305
With that explanation out of the way, let's continue. Next, we take the number 611,643,305 and divide it by 2:
611,643,305 ÷ 2 = 305,821,652.5
If the quotient is a whole number, then 2 and 305,821,652.5 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 | 611,643,305 | |
| -1 | -611,643,305 |
Now, we try dividing 611,643,305 by 3:
611,643,305 ÷ 3 = 203,881,101.6667
If the quotient is a whole number, then 3 and 203,881,101.6667 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 | 611,643,305 | |
| -1 | -611,643,305 |
Let's try dividing by 4:
611,643,305 ÷ 4 = 152,910,826.25
If the quotient is a whole number, then 4 and 152,910,826.25 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 | 611,643,305 | |
| -1 | 611,643,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 1,344,271 | 6,721,355 | 9,409,897 | 17,475,523 | 47,049,485 | 87,377,615 | 122,328,661 | 611,643,305 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -1,344,271 | -6,721,355 | -9,409,897 | -17,475,523 | -47,049,485 | -87,377,615 | -122,328,661 | -611,643,305 |
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