A:
Positive:
1 x 8814582123 x 383242747 x 187544373 x 12074771081 x 815411117 x 789131679 x 524993431 x 25691
Negative:
-1 x -88145821-23 x -3832427-47 x -1875443-73 x -1207477-1081 x -81541-1117 x -78913-1679 x -52499-3431 x -25691
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 88,145,821, 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 | 88,145,821 | |
| -1 | -88,145,821 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 88,145,821.
Example:
1 x 88,145,821 = 88,145,821
and
-1 x -88,145,821 = 88,145,821
Notice both answers equal 88,145,821
With that explanation out of the way, let's continue. Next, we take the number 88,145,821 and divide it by 2:
88,145,821 ÷ 2 = 44,072,910.5
If the quotient is a whole number, then 2 and 44,072,910.5 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 | 88,145,821 | |
| -1 | -88,145,821 |
Now, we try dividing 88,145,821 by 3:
88,145,821 ÷ 3 = 29,381,940.3333
If the quotient is a whole number, then 3 and 29,381,940.3333 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 | 88,145,821 | |
| -1 | -88,145,821 |
Let's try dividing by 4:
88,145,821 ÷ 4 = 22,036,455.25
If the quotient is a whole number, then 4 and 22,036,455.25 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 | 88,145,821 | |
| -1 | 88,145,821 |
If you did it right, you will end up with this table:
| 1 | 23 | 47 | 73 | 1,081 | 1,117 | 1,679 | 3,431 | 25,691 | 52,499 | 78,913 | 81,541 | 1,207,477 | 1,875,443 | 3,832,427 | 88,145,821 |
| -1 | -23 | -47 | -73 | -1,081 | -1,117 | -1,679 | -3,431 | -25,691 | -52,499 | -78,913 | -81,541 | -1,207,477 | -1,875,443 | -3,832,427 | -88,145,821 |
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