A:
Positive:
1 x 5311863055 x 10623726113 x 4086048565 x 817209783 x 6399835415 x 12799671079 x 4922955395 x 98459
Negative:
-1 x -531186305-5 x -106237261-13 x -40860485-65 x -8172097-83 x -6399835-415 x -1279967-1079 x -492295-5395 x -98459
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 531,186,305, 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 | 531,186,305 | |
| -1 | -531,186,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 531,186,305.
Example:
1 x 531,186,305 = 531,186,305
and
-1 x -531,186,305 = 531,186,305
Notice both answers equal 531,186,305
With that explanation out of the way, let's continue. Next, we take the number 531,186,305 and divide it by 2:
531,186,305 ÷ 2 = 265,593,152.5
If the quotient is a whole number, then 2 and 265,593,152.5 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 | 531,186,305 | |
| -1 | -531,186,305 |
Now, we try dividing 531,186,305 by 3:
531,186,305 ÷ 3 = 177,062,101.6667
If the quotient is a whole number, then 3 and 177,062,101.6667 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 | 531,186,305 | |
| -1 | -531,186,305 |
Let's try dividing by 4:
531,186,305 ÷ 4 = 132,796,576.25
If the quotient is a whole number, then 4 and 132,796,576.25 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 | 531,186,305 | |
| -1 | 531,186,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 83 | 415 | 1,079 | 5,395 | 98,459 | 492,295 | 1,279,967 | 6,399,835 | 8,172,097 | 40,860,485 | 106,237,261 | 531,186,305 |
| -1 | -5 | -13 | -65 | -83 | -415 | -1,079 | -5,395 | -98,459 | -492,295 | -1,279,967 | -6,399,835 | -8,172,097 | -40,860,485 | -106,237,261 | -531,186,305 |
Here are some more numbers to try:
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