A:
Positive:
1 x 5405465155 x 10810930329 x 18639535137 x 3945595145 x 3727907685 x 7891193973 x 13605519865 x 27211
Negative:
-1 x -540546515-5 x -108109303-29 x -18639535-137 x -3945595-145 x -3727907-685 x -789119-3973 x -136055-19865 x -27211
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 540,546,515, 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 | 540,546,515 | |
| -1 | -540,546,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 540,546,515.
Example:
1 x 540,546,515 = 540,546,515
and
-1 x -540,546,515 = 540,546,515
Notice both answers equal 540,546,515
With that explanation out of the way, let's continue. Next, we take the number 540,546,515 and divide it by 2:
540,546,515 ÷ 2 = 270,273,257.5
If the quotient is a whole number, then 2 and 270,273,257.5 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 | 540,546,515 | |
| -1 | -540,546,515 |
Now, we try dividing 540,546,515 by 3:
540,546,515 ÷ 3 = 180,182,171.6667
If the quotient is a whole number, then 3 and 180,182,171.6667 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 | 540,546,515 | |
| -1 | -540,546,515 |
Let's try dividing by 4:
540,546,515 ÷ 4 = 135,136,628.75
If the quotient is a whole number, then 4 and 135,136,628.75 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 | 540,546,515 | |
| -1 | 540,546,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 137 | 145 | 685 | 3,973 | 19,865 | 27,211 | 136,055 | 789,119 | 3,727,907 | 3,945,595 | 18,639,535 | 108,109,303 | 540,546,515 |
| -1 | -5 | -29 | -137 | -145 | -685 | -3,973 | -19,865 | -27,211 | -136,055 | -789,119 | -3,727,907 | -3,945,595 | -18,639,535 | -108,109,303 | -540,546,515 |
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