A:
Positive:
1 x 8692377111 x 790216117 x 5113163187 x 464833211 x 4119612203 x 394572321 x 374513587 x 24233
Negative:
-1 x -86923771-11 x -7902161-17 x -5113163-187 x -464833-211 x -411961-2203 x -39457-2321 x -37451-3587 x -24233
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 86,923,771, 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 | 86,923,771 | |
| -1 | -86,923,771 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 86,923,771.
Example:
1 x 86,923,771 = 86,923,771
and
-1 x -86,923,771 = 86,923,771
Notice both answers equal 86,923,771
With that explanation out of the way, let's continue. Next, we take the number 86,923,771 and divide it by 2:
86,923,771 ÷ 2 = 43,461,885.5
If the quotient is a whole number, then 2 and 43,461,885.5 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 | 86,923,771 | |
| -1 | -86,923,771 |
Now, we try dividing 86,923,771 by 3:
86,923,771 ÷ 3 = 28,974,590.3333
If the quotient is a whole number, then 3 and 28,974,590.3333 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 | 86,923,771 | |
| -1 | -86,923,771 |
Let's try dividing by 4:
86,923,771 ÷ 4 = 21,730,942.75
If the quotient is a whole number, then 4 and 21,730,942.75 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 | 86,923,771 | |
| -1 | 86,923,771 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 187 | 211 | 2,203 | 2,321 | 3,587 | 24,233 | 37,451 | 39,457 | 411,961 | 464,833 | 5,113,163 | 7,902,161 | 86,923,771 |
| -1 | -11 | -17 | -187 | -211 | -2,203 | -2,321 | -3,587 | -24,233 | -37,451 | -39,457 | -411,961 | -464,833 | -5,113,163 | -7,902,161 | -86,923,771 |
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