A:
Positive:
1 x 842326877 x 1203324111 x 765751777 x 1093931101 x 833987707 x 1191411111 x 758177777 x 10831
Negative:
-1 x -84232687-7 x -12033241-11 x -7657517-77 x -1093931-101 x -833987-707 x -119141-1111 x -75817-7777 x -10831
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 84,232,687, 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 | 84,232,687 | |
| -1 | -84,232,687 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 84,232,687.
Example:
1 x 84,232,687 = 84,232,687
and
-1 x -84,232,687 = 84,232,687
Notice both answers equal 84,232,687
With that explanation out of the way, let's continue. Next, we take the number 84,232,687 and divide it by 2:
84,232,687 ÷ 2 = 42,116,343.5
If the quotient is a whole number, then 2 and 42,116,343.5 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 | 84,232,687 | |
| -1 | -84,232,687 |
Now, we try dividing 84,232,687 by 3:
84,232,687 ÷ 3 = 28,077,562.3333
If the quotient is a whole number, then 3 and 28,077,562.3333 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 | 84,232,687 | |
| -1 | -84,232,687 |
Let's try dividing by 4:
84,232,687 ÷ 4 = 21,058,171.75
If the quotient is a whole number, then 4 and 21,058,171.75 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 | 84,232,687 | |
| -1 | 84,232,687 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 101 | 707 | 1,111 | 7,777 | 10,831 | 75,817 | 119,141 | 833,987 | 1,093,931 | 7,657,517 | 12,033,241 | 84,232,687 |
| -1 | -7 | -11 | -77 | -101 | -707 | -1,111 | -7,777 | -10,831 | -75,817 | -119,141 | -833,987 | -1,093,931 | -7,657,517 | -12,033,241 | -84,232,687 |
Here are some more numbers to try:
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