A:
Positive:
1 x 8732036313 x 671695129 x 301104767 x 1303289377 x 231619871 x 1002531943 x 449413457 x 25259
Negative:
-1 x -87320363-13 x -6716951-29 x -3011047-67 x -1303289-377 x -231619-871 x -100253-1943 x -44941-3457 x -25259
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 87,320,363, 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 | 87,320,363 | |
| -1 | -87,320,363 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 87,320,363.
Example:
1 x 87,320,363 = 87,320,363
and
-1 x -87,320,363 = 87,320,363
Notice both answers equal 87,320,363
With that explanation out of the way, let's continue. Next, we take the number 87,320,363 and divide it by 2:
87,320,363 ÷ 2 = 43,660,181.5
If the quotient is a whole number, then 2 and 43,660,181.5 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 | 87,320,363 | |
| -1 | -87,320,363 |
Now, we try dividing 87,320,363 by 3:
87,320,363 ÷ 3 = 29,106,787.6667
If the quotient is a whole number, then 3 and 29,106,787.6667 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 | 87,320,363 | |
| -1 | -87,320,363 |
Let's try dividing by 4:
87,320,363 ÷ 4 = 21,830,090.75
If the quotient is a whole number, then 4 and 21,830,090.75 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 | 87,320,363 | |
| -1 | 87,320,363 |
If you did it right, you will end up with this table:
| 1 | 13 | 29 | 67 | 377 | 871 | 1,943 | 3,457 | 25,259 | 44,941 | 100,253 | 231,619 | 1,303,289 | 3,011,047 | 6,716,951 | 87,320,363 |
| -1 | -13 | -29 | -67 | -377 | -871 | -1,943 | -3,457 | -25,259 | -44,941 | -100,253 | -231,619 | -1,303,289 | -3,011,047 | -6,716,951 | -87,320,363 |
Here are some more numbers to try:
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