A:
Positive:
1 x 179873337 x 256961913 x 138364191 x 197663157 x 1145691099 x 163671259 x 142872041 x 8813
Negative:
-1 x -17987333-7 x -2569619-13 x -1383641-91 x -197663-157 x -114569-1099 x -16367-1259 x -14287-2041 x -8813
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 17,987,333, 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 | 17,987,333 | |
| -1 | -17,987,333 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,987,333.
Example:
1 x 17,987,333 = 17,987,333
and
-1 x -17,987,333 = 17,987,333
Notice both answers equal 17,987,333
With that explanation out of the way, let's continue. Next, we take the number 17,987,333 and divide it by 2:
17,987,333 ÷ 2 = 8,993,666.5
If the quotient is a whole number, then 2 and 8,993,666.5 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 | 17,987,333 | |
| -1 | -17,987,333 |
Now, we try dividing 17,987,333 by 3:
17,987,333 ÷ 3 = 5,995,777.6667
If the quotient is a whole number, then 3 and 5,995,777.6667 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 | 17,987,333 | |
| -1 | -17,987,333 |
Let's try dividing by 4:
17,987,333 ÷ 4 = 4,496,833.25
If the quotient is a whole number, then 4 and 4,496,833.25 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 | 17,987,333 | |
| -1 | 17,987,333 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 157 | 1,099 | 1,259 | 2,041 | 8,813 | 14,287 | 16,367 | 114,569 | 197,663 | 1,383,641 | 2,569,619 | 17,987,333 |
| -1 | -7 | -13 | -91 | -157 | -1,099 | -1,259 | -2,041 | -8,813 | -14,287 | -16,367 | -114,569 | -197,663 | -1,383,641 | -2,569,619 | -17,987,333 |
Here are some more numbers to try:
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