A:
Positive:
1 x 8177744311 x 743431323 x 355554143 x 1901801253 x 323231473 x 172891989 x 826877517 x 10879
Negative:
-1 x -81777443-11 x -7434313-23 x -3555541-43 x -1901801-253 x -323231-473 x -172891-989 x -82687-7517 x -10879
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 81,777,443, 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 | 81,777,443 | |
| -1 | -81,777,443 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 81,777,443.
Example:
1 x 81,777,443 = 81,777,443
and
-1 x -81,777,443 = 81,777,443
Notice both answers equal 81,777,443
With that explanation out of the way, let's continue. Next, we take the number 81,777,443 and divide it by 2:
81,777,443 ÷ 2 = 40,888,721.5
If the quotient is a whole number, then 2 and 40,888,721.5 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 | 81,777,443 | |
| -1 | -81,777,443 |
Now, we try dividing 81,777,443 by 3:
81,777,443 ÷ 3 = 27,259,147.6667
If the quotient is a whole number, then 3 and 27,259,147.6667 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 | 81,777,443 | |
| -1 | -81,777,443 |
Let's try dividing by 4:
81,777,443 ÷ 4 = 20,444,360.75
If the quotient is a whole number, then 4 and 20,444,360.75 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 | 81,777,443 | |
| -1 | 81,777,443 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 43 | 253 | 473 | 989 | 7,517 | 10,879 | 82,687 | 172,891 | 323,231 | 1,901,801 | 3,555,541 | 7,434,313 | 81,777,443 |
| -1 | -11 | -23 | -43 | -253 | -473 | -989 | -7,517 | -10,879 | -82,687 | -172,891 | -323,231 | -1,901,801 | -3,555,541 | -7,434,313 | -81,777,443 |
Here are some more numbers to try:
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