A:
Positive:
1 x 168883617 x 241262317 x 993433119 x 141919139 x 121499973 x 173571021 x 165412363 x 7147
Negative:
-1 x -16888361-7 x -2412623-17 x -993433-119 x -141919-139 x -121499-973 x -17357-1021 x -16541-2363 x -7147
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 16,888,361, 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 | 16,888,361 | |
| -1 | -16,888,361 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,888,361.
Example:
1 x 16,888,361 = 16,888,361
and
-1 x -16,888,361 = 16,888,361
Notice both answers equal 16,888,361
With that explanation out of the way, let's continue. Next, we take the number 16,888,361 and divide it by 2:
16,888,361 ÷ 2 = 8,444,180.5
If the quotient is a whole number, then 2 and 8,444,180.5 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 | 16,888,361 | |
| -1 | -16,888,361 |
Now, we try dividing 16,888,361 by 3:
16,888,361 ÷ 3 = 5,629,453.6667
If the quotient is a whole number, then 3 and 5,629,453.6667 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 | 16,888,361 | |
| -1 | -16,888,361 |
Let's try dividing by 4:
16,888,361 ÷ 4 = 4,222,090.25
If the quotient is a whole number, then 4 and 4,222,090.25 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 | 16,888,361 | |
| -1 | 16,888,361 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 139 | 973 | 1,021 | 2,363 | 7,147 | 16,541 | 17,357 | 121,499 | 141,919 | 993,433 | 2,412,623 | 16,888,361 |
| -1 | -7 | -17 | -119 | -139 | -973 | -1,021 | -2,363 | -7,147 | -16,541 | -17,357 | -121,499 | -141,919 | -993,433 | -2,412,623 | -16,888,361 |
Here are some more numbers to try:
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