A:
Positive:
1 x 8042371155 x 16084742311 x 7311246555 x 1462249361 x 13184215305 x 2636843671 x 11985653355 x 239713
Negative:
-1 x -804237115-5 x -160847423-11 x -73112465-55 x -14622493-61 x -13184215-305 x -2636843-671 x -1198565-3355 x -239713
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 804,237,115, 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 | 804,237,115 | |
| -1 | -804,237,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 804,237,115.
Example:
1 x 804,237,115 = 804,237,115
and
-1 x -804,237,115 = 804,237,115
Notice both answers equal 804,237,115
With that explanation out of the way, let's continue. Next, we take the number 804,237,115 and divide it by 2:
804,237,115 ÷ 2 = 402,118,557.5
If the quotient is a whole number, then 2 and 402,118,557.5 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 | 804,237,115 | |
| -1 | -804,237,115 |
Now, we try dividing 804,237,115 by 3:
804,237,115 ÷ 3 = 268,079,038.3333
If the quotient is a whole number, then 3 and 268,079,038.3333 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 | 804,237,115 | |
| -1 | -804,237,115 |
Let's try dividing by 4:
804,237,115 ÷ 4 = 201,059,278.75
If the quotient is a whole number, then 4 and 201,059,278.75 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 | 804,237,115 | |
| -1 | 804,237,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 61 | 305 | 671 | 3,355 | 239,713 | 1,198,565 | 2,636,843 | 13,184,215 | 14,622,493 | 73,112,465 | 160,847,423 | 804,237,115 |
| -1 | -5 | -11 | -55 | -61 | -305 | -671 | -3,355 | -239,713 | -1,198,565 | -2,636,843 | -13,184,215 | -14,622,493 | -73,112,465 | -160,847,423 | -804,237,115 |
Here are some more numbers to try:
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