A:
Positive:
1 x 23854771719 x 1255514341 x 581823771 x 3359827227 x 1050871361 x 660797779 x 3062231349 x 1768332911 x 819474313 x 553099307 x 2563114801 x 16117
Negative:
-1 x -238547717-19 x -12555143-41 x -5818237-71 x -3359827-227 x -1050871-361 x -660797-779 x -306223-1349 x -176833-2911 x -81947-4313 x -55309-9307 x -25631-14801 x -16117
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 238,547,717, 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 | 238,547,717 | |
| -1 | -238,547,717 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 238,547,717.
Example:
1 x 238,547,717 = 238,547,717
and
-1 x -238,547,717 = 238,547,717
Notice both answers equal 238,547,717
With that explanation out of the way, let's continue. Next, we take the number 238,547,717 and divide it by 2:
238,547,717 ÷ 2 = 119,273,858.5
If the quotient is a whole number, then 2 and 119,273,858.5 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 | 238,547,717 | |
| -1 | -238,547,717 |
Now, we try dividing 238,547,717 by 3:
238,547,717 ÷ 3 = 79,515,905.6667
If the quotient is a whole number, then 3 and 79,515,905.6667 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 | 238,547,717 | |
| -1 | -238,547,717 |
Let's try dividing by 4:
238,547,717 ÷ 4 = 59,636,929.25
If the quotient is a whole number, then 4 and 59,636,929.25 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 | 238,547,717 | |
| -1 | 238,547,717 |
If you did it right, you will end up with this table:
| 1 | 19 | 41 | 71 | 227 | 361 | 779 | 1,349 | 2,911 | 4,313 | 9,307 | 14,801 | 16,117 | 25,631 | 55,309 | 81,947 | 176,833 | 306,223 | 660,797 | 1,050,871 | 3,359,827 | 5,818,237 | 12,555,143 | 238,547,717 |
| -1 | -19 | -41 | -71 | -227 | -361 | -779 | -1,349 | -2,911 | -4,313 | -9,307 | -14,801 | -16,117 | -25,631 | -55,309 | -81,947 | -176,833 | -306,223 | -660,797 | -1,050,871 | -3,359,827 | -5,818,237 | -12,555,143 | -238,547,717 |
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