A:
Positive:
1 x 841672555 x 1683345117 x 495101585 x 990203691 x 1218051433 x 587353455 x 243617165 x 11747
Negative:
-1 x -84167255-5 x -16833451-17 x -4951015-85 x -990203-691 x -121805-1433 x -58735-3455 x -24361-7165 x -11747
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 84,167,255, 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 | 84,167,255 | |
| -1 | -84,167,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 84,167,255.
Example:
1 x 84,167,255 = 84,167,255
and
-1 x -84,167,255 = 84,167,255
Notice both answers equal 84,167,255
With that explanation out of the way, let's continue. Next, we take the number 84,167,255 and divide it by 2:
84,167,255 ÷ 2 = 42,083,627.5
If the quotient is a whole number, then 2 and 42,083,627.5 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 | 84,167,255 | |
| -1 | -84,167,255 |
Now, we try dividing 84,167,255 by 3:
84,167,255 ÷ 3 = 28,055,751.6667
If the quotient is a whole number, then 3 and 28,055,751.6667 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 | 84,167,255 | |
| -1 | -84,167,255 |
Let's try dividing by 4:
84,167,255 ÷ 4 = 21,041,813.75
If the quotient is a whole number, then 4 and 21,041,813.75 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 | 84,167,255 | |
| -1 | 84,167,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 691 | 1,433 | 3,455 | 7,165 | 11,747 | 24,361 | 58,735 | 121,805 | 990,203 | 4,951,015 | 16,833,451 | 84,167,255 |
| -1 | -5 | -17 | -85 | -691 | -1,433 | -3,455 | -7,165 | -11,747 | -24,361 | -58,735 | -121,805 | -990,203 | -4,951,015 | -16,833,451 | -84,167,255 |
Here are some more numbers to try:
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