A:
Positive:
1 x 3109360877 x 4441944111 x 2826691741 x 758380777 x 4038131287 x 1083401451 x 6894373157 x 98491
Negative:
-1 x -310936087-7 x -44419441-11 x -28266917-41 x -7583807-77 x -4038131-287 x -1083401-451 x -689437-3157 x -98491
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 310,936,087, 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 | 310,936,087 | |
| -1 | -310,936,087 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 310,936,087.
Example:
1 x 310,936,087 = 310,936,087
and
-1 x -310,936,087 = 310,936,087
Notice both answers equal 310,936,087
With that explanation out of the way, let's continue. Next, we take the number 310,936,087 and divide it by 2:
310,936,087 ÷ 2 = 155,468,043.5
If the quotient is a whole number, then 2 and 155,468,043.5 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 | 310,936,087 | |
| -1 | -310,936,087 |
Now, we try dividing 310,936,087 by 3:
310,936,087 ÷ 3 = 103,645,362.3333
If the quotient is a whole number, then 3 and 103,645,362.3333 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 | 310,936,087 | |
| -1 | -310,936,087 |
Let's try dividing by 4:
310,936,087 ÷ 4 = 77,734,021.75
If the quotient is a whole number, then 4 and 77,734,021.75 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 | 310,936,087 | |
| -1 | 310,936,087 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 41 | 77 | 287 | 451 | 3,157 | 98,491 | 689,437 | 1,083,401 | 4,038,131 | 7,583,807 | 28,266,917 | 44,419,441 | 310,936,087 |
| -1 | -7 | -11 | -41 | -77 | -287 | -451 | -3,157 | -98,491 | -689,437 | -1,083,401 | -4,038,131 | -7,583,807 | -28,266,917 | -44,419,441 | -310,936,087 |
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