A:
Positive:
1 x 5816563155 x 11633126323 x 25289405115 x 5057881211 x 27566651055 x 5513334853 x 11985523971 x 24265
Negative:
-1 x -581656315-5 x -116331263-23 x -25289405-115 x -5057881-211 x -2756665-1055 x -551333-4853 x -119855-23971 x -24265
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 581,656,315, 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 | 581,656,315 | |
| -1 | -581,656,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 581,656,315.
Example:
1 x 581,656,315 = 581,656,315
and
-1 x -581,656,315 = 581,656,315
Notice both answers equal 581,656,315
With that explanation out of the way, let's continue. Next, we take the number 581,656,315 and divide it by 2:
581,656,315 ÷ 2 = 290,828,157.5
If the quotient is a whole number, then 2 and 290,828,157.5 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 | 581,656,315 | |
| -1 | -581,656,315 |
Now, we try dividing 581,656,315 by 3:
581,656,315 ÷ 3 = 193,885,438.3333
If the quotient is a whole number, then 3 and 193,885,438.3333 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 | 581,656,315 | |
| -1 | -581,656,315 |
Let's try dividing by 4:
581,656,315 ÷ 4 = 145,414,078.75
If the quotient is a whole number, then 4 and 145,414,078.75 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 | 581,656,315 | |
| -1 | 581,656,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 211 | 1,055 | 4,853 | 23,971 | 24,265 | 119,855 | 551,333 | 2,756,665 | 5,057,881 | 25,289,405 | 116,331,263 | 581,656,315 |
| -1 | -5 | -23 | -115 | -211 | -1,055 | -4,853 | -23,971 | -24,265 | -119,855 | -551,333 | -2,756,665 | -5,057,881 | -25,289,405 | -116,331,263 | -581,656,315 |
Here are some more numbers to try:
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