A:
Positive:
1 x 179471155 x 358942319 x 94458561 x 29421595 x 188917163 x 110105305 x 58843361 x 49715815 x 220211159 x 154851805 x 99433097 x 5795
Negative:
-1 x -17947115-5 x -3589423-19 x -944585-61 x -294215-95 x -188917-163 x -110105-305 x -58843-361 x -49715-815 x -22021-1159 x -15485-1805 x -9943-3097 x -5795
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 17,947,115, 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 | 17,947,115 | |
| -1 | -17,947,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,947,115.
Example:
1 x 17,947,115 = 17,947,115
and
-1 x -17,947,115 = 17,947,115
Notice both answers equal 17,947,115
With that explanation out of the way, let's continue. Next, we take the number 17,947,115 and divide it by 2:
17,947,115 ÷ 2 = 8,973,557.5
If the quotient is a whole number, then 2 and 8,973,557.5 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 | 17,947,115 | |
| -1 | -17,947,115 |
Now, we try dividing 17,947,115 by 3:
17,947,115 ÷ 3 = 5,982,371.6667
If the quotient is a whole number, then 3 and 5,982,371.6667 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 | 17,947,115 | |
| -1 | -17,947,115 |
Let's try dividing by 4:
17,947,115 ÷ 4 = 4,486,778.75
If the quotient is a whole number, then 4 and 4,486,778.75 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 | 17,947,115 | |
| -1 | 17,947,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 61 | 95 | 163 | 305 | 361 | 815 | 1,159 | 1,805 | 3,097 | 5,795 | 9,943 | 15,485 | 22,021 | 49,715 | 58,843 | 110,105 | 188,917 | 294,215 | 944,585 | 3,589,423 | 17,947,115 |
| -1 | -5 | -19 | -61 | -95 | -163 | -305 | -361 | -815 | -1,159 | -1,805 | -3,097 | -5,795 | -9,943 | -15,485 | -22,021 | -49,715 | -58,843 | -110,105 | -188,917 | -294,215 | -944,585 | -3,589,423 | -17,947,115 |
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