A:
Positive:
1 x 85805428759 x 14543293101 x 8495587311 x 2759017463 x 18532495959 x 14399318349 x 4676327317 x 31411
Negative:
-1 x -858054287-59 x -14543293-101 x -8495587-311 x -2759017-463 x -1853249-5959 x -143993-18349 x -46763-27317 x -31411
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 858,054,287, 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 | 858,054,287 | |
| -1 | -858,054,287 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 858,054,287.
Example:
1 x 858,054,287 = 858,054,287
and
-1 x -858,054,287 = 858,054,287
Notice both answers equal 858,054,287
With that explanation out of the way, let's continue. Next, we take the number 858,054,287 and divide it by 2:
858,054,287 ÷ 2 = 429,027,143.5
If the quotient is a whole number, then 2 and 429,027,143.5 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 | 858,054,287 | |
| -1 | -858,054,287 |
Now, we try dividing 858,054,287 by 3:
858,054,287 ÷ 3 = 286,018,095.6667
If the quotient is a whole number, then 3 and 286,018,095.6667 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 | 858,054,287 | |
| -1 | -858,054,287 |
Let's try dividing by 4:
858,054,287 ÷ 4 = 214,513,571.75
If the quotient is a whole number, then 4 and 214,513,571.75 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 | 858,054,287 | |
| -1 | 858,054,287 |
If you did it right, you will end up with this table:
| 1 | 59 | 101 | 311 | 463 | 5,959 | 18,349 | 27,317 | 31,411 | 46,763 | 143,993 | 1,853,249 | 2,759,017 | 8,495,587 | 14,543,293 | 858,054,287 |
| -1 | -59 | -101 | -311 | -463 | -5,959 | -18,349 | -27,317 | -31,411 | -46,763 | -143,993 | -1,853,249 | -2,759,017 | -8,495,587 | -14,543,293 | -858,054,287 |
Here are some more numbers to try:
Try the factor calculator