A:
Positive:
1 x 2355085817 x 3364408311 x 2140987131 x 759705177 x 3058553217 x 1085293341 x 6906412387 x 98663
Negative:
-1 x -235508581-7 x -33644083-11 x -21409871-31 x -7597051-77 x -3058553-217 x -1085293-341 x -690641-2387 x -98663
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 235,508,581, 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 | 235,508,581 | |
| -1 | -235,508,581 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 235,508,581.
Example:
1 x 235,508,581 = 235,508,581
and
-1 x -235,508,581 = 235,508,581
Notice both answers equal 235,508,581
With that explanation out of the way, let's continue. Next, we take the number 235,508,581 and divide it by 2:
235,508,581 ÷ 2 = 117,754,290.5
If the quotient is a whole number, then 2 and 117,754,290.5 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 | 235,508,581 | |
| -1 | -235,508,581 |
Now, we try dividing 235,508,581 by 3:
235,508,581 ÷ 3 = 78,502,860.3333
If the quotient is a whole number, then 3 and 78,502,860.3333 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 | 235,508,581 | |
| -1 | -235,508,581 |
Let's try dividing by 4:
235,508,581 ÷ 4 = 58,877,145.25
If the quotient is a whole number, then 4 and 58,877,145.25 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 | 235,508,581 | |
| -1 | 235,508,581 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 31 | 77 | 217 | 341 | 2,387 | 98,663 | 690,641 | 1,085,293 | 3,058,553 | 7,597,051 | 21,409,871 | 33,644,083 | 235,508,581 |
| -1 | -7 | -11 | -31 | -77 | -217 | -341 | -2,387 | -98,663 | -690,641 | -1,085,293 | -3,058,553 | -7,597,051 | -21,409,871 | -33,644,083 | -235,508,581 |
Here are some more numbers to try:
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