A:
Positive:
1 x 54053242111 x 4913931113 x 4157941729 x 18639049143 x 3779947319 x 1694459377 x 14337734147 x 130343
Negative:
-1 x -540532421-11 x -49139311-13 x -41579417-29 x -18639049-143 x -3779947-319 x -1694459-377 x -1433773-4147 x -130343
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 540,532,421, 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 | 540,532,421 | |
| -1 | -540,532,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 540,532,421.
Example:
1 x 540,532,421 = 540,532,421
and
-1 x -540,532,421 = 540,532,421
Notice both answers equal 540,532,421
With that explanation out of the way, let's continue. Next, we take the number 540,532,421 and divide it by 2:
540,532,421 ÷ 2 = 270,266,210.5
If the quotient is a whole number, then 2 and 270,266,210.5 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 | 540,532,421 | |
| -1 | -540,532,421 |
Now, we try dividing 540,532,421 by 3:
540,532,421 ÷ 3 = 180,177,473.6667
If the quotient is a whole number, then 3 and 180,177,473.6667 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 | 540,532,421 | |
| -1 | -540,532,421 |
Let's try dividing by 4:
540,532,421 ÷ 4 = 135,133,105.25
If the quotient is a whole number, then 4 and 135,133,105.25 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 | 540,532,421 | |
| -1 | 540,532,421 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 29 | 143 | 319 | 377 | 4,147 | 130,343 | 1,433,773 | 1,694,459 | 3,779,947 | 18,639,049 | 41,579,417 | 49,139,311 | 540,532,421 |
| -1 | -11 | -13 | -29 | -143 | -319 | -377 | -4,147 | -130,343 | -1,433,773 | -1,694,459 | -3,779,947 | -18,639,049 | -41,579,417 | -49,139,311 | -540,532,421 |
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