A:
Positive:
1 x 5388702119 x 283615931 x 1738291191 x 282131479 x 112499589 x 914893629 x 148495921 x 9101
Negative:
-1 x -53887021-19 x -2836159-31 x -1738291-191 x -282131-479 x -112499-589 x -91489-3629 x -14849-5921 x -9101
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 53,887,021, 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 | 53,887,021 | |
| -1 | -53,887,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 53,887,021.
Example:
1 x 53,887,021 = 53,887,021
and
-1 x -53,887,021 = 53,887,021
Notice both answers equal 53,887,021
With that explanation out of the way, let's continue. Next, we take the number 53,887,021 and divide it by 2:
53,887,021 ÷ 2 = 26,943,510.5
If the quotient is a whole number, then 2 and 26,943,510.5 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 | 53,887,021 | |
| -1 | -53,887,021 |
Now, we try dividing 53,887,021 by 3:
53,887,021 ÷ 3 = 17,962,340.3333
If the quotient is a whole number, then 3 and 17,962,340.3333 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 | 53,887,021 | |
| -1 | -53,887,021 |
Let's try dividing by 4:
53,887,021 ÷ 4 = 13,471,755.25
If the quotient is a whole number, then 4 and 13,471,755.25 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 | 53,887,021 | |
| -1 | 53,887,021 |
If you did it right, you will end up with this table:
| 1 | 19 | 31 | 191 | 479 | 589 | 3,629 | 5,921 | 9,101 | 14,849 | 91,489 | 112,499 | 282,131 | 1,738,291 | 2,836,159 | 53,887,021 |
| -1 | -19 | -31 | -191 | -479 | -589 | -3,629 | -5,921 | -9,101 | -14,849 | -91,489 | -112,499 | -282,131 | -1,738,291 | -2,836,159 | -53,887,021 |
Here are some more numbers to try:
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