A:
Positive:
1 x 88116917 x 125881323 x 383117161 x 54731229 x 38479239 x 368691603 x 54971673 x 5267
Negative:
-1 x -8811691-7 x -1258813-23 x -383117-161 x -54731-229 x -38479-239 x -36869-1603 x -5497-1673 x -5267
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 8,811,691, 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 | 8,811,691 | |
| -1 | -8,811,691 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,811,691.
Example:
1 x 8,811,691 = 8,811,691
and
-1 x -8,811,691 = 8,811,691
Notice both answers equal 8,811,691
With that explanation out of the way, let's continue. Next, we take the number 8,811,691 and divide it by 2:
8,811,691 ÷ 2 = 4,405,845.5
If the quotient is a whole number, then 2 and 4,405,845.5 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 | 8,811,691 | |
| -1 | -8,811,691 |
Now, we try dividing 8,811,691 by 3:
8,811,691 ÷ 3 = 2,937,230.3333
If the quotient is a whole number, then 3 and 2,937,230.3333 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 | 8,811,691 | |
| -1 | -8,811,691 |
Let's try dividing by 4:
8,811,691 ÷ 4 = 2,202,922.75
If the quotient is a whole number, then 4 and 2,202,922.75 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 | 8,811,691 | |
| -1 | 8,811,691 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 161 | 229 | 239 | 1,603 | 1,673 | 5,267 | 5,497 | 36,869 | 38,479 | 54,731 | 383,117 | 1,258,813 | 8,811,691 |
| -1 | -7 | -23 | -161 | -229 | -239 | -1,603 | -1,673 | -5,267 | -5,497 | -36,869 | -38,479 | -54,731 | -383,117 | -1,258,813 | -8,811,691 |
Here are some more numbers to try:
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