A:
Positive:
1 x 1815221155 x 36304423131 x 1385665431 x 421165643 x 282305655 x 2771332155 x 842333215 x 56461
Negative:
-1 x -181522115-5 x -36304423-131 x -1385665-431 x -421165-643 x -282305-655 x -277133-2155 x -84233-3215 x -56461
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 181,522,115, 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 | 181,522,115 | |
| -1 | -181,522,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 181,522,115.
Example:
1 x 181,522,115 = 181,522,115
and
-1 x -181,522,115 = 181,522,115
Notice both answers equal 181,522,115
With that explanation out of the way, let's continue. Next, we take the number 181,522,115 and divide it by 2:
181,522,115 ÷ 2 = 90,761,057.5
If the quotient is a whole number, then 2 and 90,761,057.5 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 | 181,522,115 | |
| -1 | -181,522,115 |
Now, we try dividing 181,522,115 by 3:
181,522,115 ÷ 3 = 60,507,371.6667
If the quotient is a whole number, then 3 and 60,507,371.6667 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 | 181,522,115 | |
| -1 | -181,522,115 |
Let's try dividing by 4:
181,522,115 ÷ 4 = 45,380,528.75
If the quotient is a whole number, then 4 and 45,380,528.75 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 | 181,522,115 | |
| -1 | 181,522,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 131 | 431 | 643 | 655 | 2,155 | 3,215 | 56,461 | 84,233 | 277,133 | 282,305 | 421,165 | 1,385,665 | 36,304,423 | 181,522,115 |
| -1 | -5 | -131 | -431 | -643 | -655 | -2,155 | -3,215 | -56,461 | -84,233 | -277,133 | -282,305 | -421,165 | -1,385,665 | -36,304,423 | -181,522,115 |
Here are some more numbers to try:
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