A:
Positive:
1 x 1838272711 x 167115723 x 799249113 x 162679253 x 72659643 x 285891243 x 147892599 x 7073
Negative:
-1 x -18382727-11 x -1671157-23 x -799249-113 x -162679-253 x -72659-643 x -28589-1243 x -14789-2599 x -7073
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 18,382,727, 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 | 18,382,727 | |
| -1 | -18,382,727 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 18,382,727.
Example:
1 x 18,382,727 = 18,382,727
and
-1 x -18,382,727 = 18,382,727
Notice both answers equal 18,382,727
With that explanation out of the way, let's continue. Next, we take the number 18,382,727 and divide it by 2:
18,382,727 ÷ 2 = 9,191,363.5
If the quotient is a whole number, then 2 and 9,191,363.5 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 | 18,382,727 | |
| -1 | -18,382,727 |
Now, we try dividing 18,382,727 by 3:
18,382,727 ÷ 3 = 6,127,575.6667
If the quotient is a whole number, then 3 and 6,127,575.6667 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 | 18,382,727 | |
| -1 | -18,382,727 |
Let's try dividing by 4:
18,382,727 ÷ 4 = 4,595,681.75
If the quotient is a whole number, then 4 and 4,595,681.75 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 | 18,382,727 | |
| -1 | 18,382,727 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 113 | 253 | 643 | 1,243 | 2,599 | 7,073 | 14,789 | 28,589 | 72,659 | 162,679 | 799,249 | 1,671,157 | 18,382,727 |
| -1 | -11 | -23 | -113 | -253 | -643 | -1,243 | -2,599 | -7,073 | -14,789 | -28,589 | -72,659 | -162,679 | -799,249 | -1,671,157 | -18,382,727 |
Here are some more numbers to try:
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