A:
Positive:
1 x 3840748155 x 7681496323 x 16698905115 x 33397811423 x 2699052347 x 1636457115 x 5398111735 x 32729
Negative:
-1 x -384074815-5 x -76814963-23 x -16698905-115 x -3339781-1423 x -269905-2347 x -163645-7115 x -53981-11735 x -32729
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 384,074,815, 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 | 384,074,815 | |
| -1 | -384,074,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 384,074,815.
Example:
1 x 384,074,815 = 384,074,815
and
-1 x -384,074,815 = 384,074,815
Notice both answers equal 384,074,815
With that explanation out of the way, let's continue. Next, we take the number 384,074,815 and divide it by 2:
384,074,815 ÷ 2 = 192,037,407.5
If the quotient is a whole number, then 2 and 192,037,407.5 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 | 384,074,815 | |
| -1 | -384,074,815 |
Now, we try dividing 384,074,815 by 3:
384,074,815 ÷ 3 = 128,024,938.3333
If the quotient is a whole number, then 3 and 128,024,938.3333 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 | 384,074,815 | |
| -1 | -384,074,815 |
Let's try dividing by 4:
384,074,815 ÷ 4 = 96,018,703.75
If the quotient is a whole number, then 4 and 96,018,703.75 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 | 384,074,815 | |
| -1 | 384,074,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 1,423 | 2,347 | 7,115 | 11,735 | 32,729 | 53,981 | 163,645 | 269,905 | 3,339,781 | 16,698,905 | 76,814,963 | 384,074,815 |
| -1 | -5 | -23 | -115 | -1,423 | -2,347 | -7,115 | -11,735 | -32,729 | -53,981 | -163,645 | -269,905 | -3,339,781 | -16,698,905 | -76,814,963 | -384,074,815 |
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