A:
Positive:
1 x 873758355 x 1747516717 x 513975585 x 1027951149 x 586415745 x 1172832533 x 344956899 x 12665
Negative:
-1 x -87375835-5 x -17475167-17 x -5139755-85 x -1027951-149 x -586415-745 x -117283-2533 x -34495-6899 x -12665
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 87,375,835, 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 | 87,375,835 | |
| -1 | -87,375,835 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 87,375,835.
Example:
1 x 87,375,835 = 87,375,835
and
-1 x -87,375,835 = 87,375,835
Notice both answers equal 87,375,835
With that explanation out of the way, let's continue. Next, we take the number 87,375,835 and divide it by 2:
87,375,835 ÷ 2 = 43,687,917.5
If the quotient is a whole number, then 2 and 43,687,917.5 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 | 87,375,835 | |
| -1 | -87,375,835 |
Now, we try dividing 87,375,835 by 3:
87,375,835 ÷ 3 = 29,125,278.3333
If the quotient is a whole number, then 3 and 29,125,278.3333 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 | 87,375,835 | |
| -1 | -87,375,835 |
Let's try dividing by 4:
87,375,835 ÷ 4 = 21,843,958.75
If the quotient is a whole number, then 4 and 21,843,958.75 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 | 87,375,835 | |
| -1 | 87,375,835 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 149 | 745 | 2,533 | 6,899 | 12,665 | 34,495 | 117,283 | 586,415 | 1,027,951 | 5,139,755 | 17,475,167 | 87,375,835 |
| -1 | -5 | -17 | -85 | -149 | -745 | -2,533 | -6,899 | -12,665 | -34,495 | -117,283 | -586,415 | -1,027,951 | -5,139,755 | -17,475,167 | -87,375,835 |
Here are some more numbers to try:
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