A:
Positive:
1 x 858432855 x 1716865711 x 780393517 x 504960555 x 156078785 x 1009921187 x 459055935 x 91811
Negative:
-1 x -85843285-5 x -17168657-11 x -7803935-17 x -5049605-55 x -1560787-85 x -1009921-187 x -459055-935 x -91811
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 85,843,285, 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 | 85,843,285 | |
| -1 | -85,843,285 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,843,285.
Example:
1 x 85,843,285 = 85,843,285
and
-1 x -85,843,285 = 85,843,285
Notice both answers equal 85,843,285
With that explanation out of the way, let's continue. Next, we take the number 85,843,285 and divide it by 2:
85,843,285 ÷ 2 = 42,921,642.5
If the quotient is a whole number, then 2 and 42,921,642.5 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 | 85,843,285 | |
| -1 | -85,843,285 |
Now, we try dividing 85,843,285 by 3:
85,843,285 ÷ 3 = 28,614,428.3333
If the quotient is a whole number, then 3 and 28,614,428.3333 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 | 85,843,285 | |
| -1 | -85,843,285 |
Let's try dividing by 4:
85,843,285 ÷ 4 = 21,460,821.25
If the quotient is a whole number, then 4 and 21,460,821.25 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 | 85,843,285 | |
| -1 | 85,843,285 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 91,811 | 459,055 | 1,009,921 | 1,560,787 | 5,049,605 | 7,803,935 | 17,168,657 | 85,843,285 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -91,811 | -459,055 | -1,009,921 | -1,560,787 | -5,049,605 | -7,803,935 | -17,168,657 | -85,843,285 |
Here are some more numbers to try:
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