A:
Positive:
1 x 872453355 x 1744906741 x 2127935205 x 425587211 x 4134851055 x 826972017 x 432558651 x 10085
Negative:
-1 x -87245335-5 x -17449067-41 x -2127935-205 x -425587-211 x -413485-1055 x -82697-2017 x -43255-8651 x -10085
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 87,245,335, 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 | 87,245,335 | |
| -1 | -87,245,335 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 87,245,335.
Example:
1 x 87,245,335 = 87,245,335
and
-1 x -87,245,335 = 87,245,335
Notice both answers equal 87,245,335
With that explanation out of the way, let's continue. Next, we take the number 87,245,335 and divide it by 2:
87,245,335 ÷ 2 = 43,622,667.5
If the quotient is a whole number, then 2 and 43,622,667.5 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 | 87,245,335 | |
| -1 | -87,245,335 |
Now, we try dividing 87,245,335 by 3:
87,245,335 ÷ 3 = 29,081,778.3333
If the quotient is a whole number, then 3 and 29,081,778.3333 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 | 87,245,335 | |
| -1 | -87,245,335 |
Let's try dividing by 4:
87,245,335 ÷ 4 = 21,811,333.75
If the quotient is a whole number, then 4 and 21,811,333.75 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 | 87,245,335 | |
| -1 | 87,245,335 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 205 | 211 | 1,055 | 2,017 | 8,651 | 10,085 | 43,255 | 82,697 | 413,485 | 425,587 | 2,127,935 | 17,449,067 | 87,245,335 |
| -1 | -5 | -41 | -205 | -211 | -1,055 | -2,017 | -8,651 | -10,085 | -43,255 | -82,697 | -413,485 | -425,587 | -2,127,935 | -17,449,067 | -87,245,335 |
Here are some more numbers to try:
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