A:
Positive:
1 x 8478166719 x 446219389 x 952603181 x 468407277 x 3060711691 x 501373439 x 246535263 x 16109
Negative:
-1 x -84781667-19 x -4462193-89 x -952603-181 x -468407-277 x -306071-1691 x -50137-3439 x -24653-5263 x -16109
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 84,781,667, 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 | 84,781,667 | |
| -1 | -84,781,667 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 84,781,667.
Example:
1 x 84,781,667 = 84,781,667
and
-1 x -84,781,667 = 84,781,667
Notice both answers equal 84,781,667
With that explanation out of the way, let's continue. Next, we take the number 84,781,667 and divide it by 2:
84,781,667 ÷ 2 = 42,390,833.5
If the quotient is a whole number, then 2 and 42,390,833.5 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 | 84,781,667 | |
| -1 | -84,781,667 |
Now, we try dividing 84,781,667 by 3:
84,781,667 ÷ 3 = 28,260,555.6667
If the quotient is a whole number, then 3 and 28,260,555.6667 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 | 84,781,667 | |
| -1 | -84,781,667 |
Let's try dividing by 4:
84,781,667 ÷ 4 = 21,195,416.75
If the quotient is a whole number, then 4 and 21,195,416.75 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 | 84,781,667 | |
| -1 | 84,781,667 |
If you did it right, you will end up with this table:
| 1 | 19 | 89 | 181 | 277 | 1,691 | 3,439 | 5,263 | 16,109 | 24,653 | 50,137 | 306,071 | 468,407 | 952,603 | 4,462,193 | 84,781,667 |
| -1 | -19 | -89 | -181 | -277 | -1,691 | -3,439 | -5,263 | -16,109 | -24,653 | -50,137 | -306,071 | -468,407 | -952,603 | -4,462,193 | -84,781,667 |
Here are some more numbers to try:
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