A:
Positive:
1 x 81757888311 x 74325353127 x 6437629587 x 1392809997 x 8200391397 x 5852396457 x 12661910967 x 74549
Negative:
-1 x -817578883-11 x -74325353-127 x -6437629-587 x -1392809-997 x -820039-1397 x -585239-6457 x -126619-10967 x -74549
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 817,578,883, 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 | 817,578,883 | |
| -1 | -817,578,883 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 817,578,883.
Example:
1 x 817,578,883 = 817,578,883
and
-1 x -817,578,883 = 817,578,883
Notice both answers equal 817,578,883
With that explanation out of the way, let's continue. Next, we take the number 817,578,883 and divide it by 2:
817,578,883 ÷ 2 = 408,789,441.5
If the quotient is a whole number, then 2 and 408,789,441.5 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 | 817,578,883 | |
| -1 | -817,578,883 |
Now, we try dividing 817,578,883 by 3:
817,578,883 ÷ 3 = 272,526,294.3333
If the quotient is a whole number, then 3 and 272,526,294.3333 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 | 817,578,883 | |
| -1 | -817,578,883 |
Let's try dividing by 4:
817,578,883 ÷ 4 = 204,394,720.75
If the quotient is a whole number, then 4 and 204,394,720.75 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 | 817,578,883 | |
| -1 | 817,578,883 |
If you did it right, you will end up with this table:
| 1 | 11 | 127 | 587 | 997 | 1,397 | 6,457 | 10,967 | 74,549 | 126,619 | 585,239 | 820,039 | 1,392,809 | 6,437,629 | 74,325,353 | 817,578,883 |
| -1 | -11 | -127 | -587 | -997 | -1,397 | -6,457 | -10,967 | -74,549 | -126,619 | -585,239 | -820,039 | -1,392,809 | -6,437,629 | -74,325,353 | -817,578,883 |
Here are some more numbers to try:
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