A:
Positive:
1 x 856842355 x 171368477 x 1224060513 x 659109535 x 244812165 x 131821991 x 941585455 x 188317
Negative:
-1 x -85684235-5 x -17136847-7 x -12240605-13 x -6591095-35 x -2448121-65 x -1318219-91 x -941585-455 x -188317
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 85,684,235, 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 | 85,684,235 | |
| -1 | -85,684,235 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,684,235.
Example:
1 x 85,684,235 = 85,684,235
and
-1 x -85,684,235 = 85,684,235
Notice both answers equal 85,684,235
With that explanation out of the way, let's continue. Next, we take the number 85,684,235 and divide it by 2:
85,684,235 ÷ 2 = 42,842,117.5
If the quotient is a whole number, then 2 and 42,842,117.5 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 | 85,684,235 | |
| -1 | -85,684,235 |
Now, we try dividing 85,684,235 by 3:
85,684,235 ÷ 3 = 28,561,411.6667
If the quotient is a whole number, then 3 and 28,561,411.6667 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 | 85,684,235 | |
| -1 | -85,684,235 |
Let's try dividing by 4:
85,684,235 ÷ 4 = 21,421,058.75
If the quotient is a whole number, then 4 and 21,421,058.75 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 | 85,684,235 | |
| -1 | 85,684,235 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 188,317 | 941,585 | 1,318,219 | 2,448,121 | 6,591,095 | 12,240,605 | 17,136,847 | 85,684,235 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -188,317 | -941,585 | -1,318,219 | -2,448,121 | -6,591,095 | -12,240,605 | -17,136,847 | -85,684,235 |
Here are some more numbers to try:
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