A:
Positive:
1 x 171892917 x 245561341 x 419251101 x 170191287 x 59893593 x 28987707 x 243134141 x 4151
Negative:
-1 x -17189291-7 x -2455613-41 x -419251-101 x -170191-287 x -59893-593 x -28987-707 x -24313-4141 x -4151
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 17,189,291, 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 | 17,189,291 | |
| -1 | -17,189,291 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,189,291.
Example:
1 x 17,189,291 = 17,189,291
and
-1 x -17,189,291 = 17,189,291
Notice both answers equal 17,189,291
With that explanation out of the way, let's continue. Next, we take the number 17,189,291 and divide it by 2:
17,189,291 ÷ 2 = 8,594,645.5
If the quotient is a whole number, then 2 and 8,594,645.5 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 | 17,189,291 | |
| -1 | -17,189,291 |
Now, we try dividing 17,189,291 by 3:
17,189,291 ÷ 3 = 5,729,763.6667
If the quotient is a whole number, then 3 and 5,729,763.6667 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 | 17,189,291 | |
| -1 | -17,189,291 |
Let's try dividing by 4:
17,189,291 ÷ 4 = 4,297,322.75
If the quotient is a whole number, then 4 and 4,297,322.75 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 | 17,189,291 | |
| -1 | 17,189,291 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 101 | 287 | 593 | 707 | 4,141 | 4,151 | 24,313 | 28,987 | 59,893 | 170,191 | 419,251 | 2,455,613 | 17,189,291 |
| -1 | -7 | -41 | -101 | -287 | -593 | -707 | -4,141 | -4,151 | -24,313 | -28,987 | -59,893 | -170,191 | -419,251 | -2,455,613 | -17,189,291 |
Here are some more numbers to try:
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