A:
Positive:
1 x 2113412637 x 3019160917 x 1243183949 x 431308753 x 3987571119 x 1775977371 x 569653833 x 253711901 x 2345632597 x 813794787 x 441496307 x 33509
Negative:
-1 x -211341263-7 x -30191609-17 x -12431839-49 x -4313087-53 x -3987571-119 x -1775977-371 x -569653-833 x -253711-901 x -234563-2597 x -81379-4787 x -44149-6307 x -33509
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 211,341,263, 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 | 211,341,263 | |
| -1 | -211,341,263 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 211,341,263.
Example:
1 x 211,341,263 = 211,341,263
and
-1 x -211,341,263 = 211,341,263
Notice both answers equal 211,341,263
With that explanation out of the way, let's continue. Next, we take the number 211,341,263 and divide it by 2:
211,341,263 ÷ 2 = 105,670,631.5
If the quotient is a whole number, then 2 and 105,670,631.5 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 | 211,341,263 | |
| -1 | -211,341,263 |
Now, we try dividing 211,341,263 by 3:
211,341,263 ÷ 3 = 70,447,087.6667
If the quotient is a whole number, then 3 and 70,447,087.6667 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 | 211,341,263 | |
| -1 | -211,341,263 |
Let's try dividing by 4:
211,341,263 ÷ 4 = 52,835,315.75
If the quotient is a whole number, then 4 and 52,835,315.75 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 | 211,341,263 | |
| -1 | 211,341,263 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 49 | 53 | 119 | 371 | 833 | 901 | 2,597 | 4,787 | 6,307 | 33,509 | 44,149 | 81,379 | 234,563 | 253,711 | 569,653 | 1,775,977 | 3,987,571 | 4,313,087 | 12,431,839 | 30,191,609 | 211,341,263 |
| -1 | -7 | -17 | -49 | -53 | -119 | -371 | -833 | -901 | -2,597 | -4,787 | -6,307 | -33,509 | -44,149 | -81,379 | -234,563 | -253,711 | -569,653 | -1,775,977 | -3,987,571 | -4,313,087 | -12,431,839 | -30,191,609 | -211,341,263 |
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