A:
Positive:
1 x 238303855 x 476607743 x 554195215 x 110839271 x 87935409 x 582651355 x 175872045 x 11653
Negative:
-1 x -23830385-5 x -4766077-43 x -554195-215 x -110839-271 x -87935-409 x -58265-1355 x -17587-2045 x -11653
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 23,830,385, 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 | 23,830,385 | |
| -1 | -23,830,385 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,830,385.
Example:
1 x 23,830,385 = 23,830,385
and
-1 x -23,830,385 = 23,830,385
Notice both answers equal 23,830,385
With that explanation out of the way, let's continue. Next, we take the number 23,830,385 and divide it by 2:
23,830,385 ÷ 2 = 11,915,192.5
If the quotient is a whole number, then 2 and 11,915,192.5 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 | 23,830,385 | |
| -1 | -23,830,385 |
Now, we try dividing 23,830,385 by 3:
23,830,385 ÷ 3 = 7,943,461.6667
If the quotient is a whole number, then 3 and 7,943,461.6667 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 | 23,830,385 | |
| -1 | -23,830,385 |
Let's try dividing by 4:
23,830,385 ÷ 4 = 5,957,596.25
If the quotient is a whole number, then 4 and 5,957,596.25 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 | 23,830,385 | |
| -1 | 23,830,385 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 215 | 271 | 409 | 1,355 | 2,045 | 11,653 | 17,587 | 58,265 | 87,935 | 110,839 | 554,195 | 4,766,077 | 23,830,385 |
| -1 | -5 | -43 | -215 | -271 | -409 | -1,355 | -2,045 | -11,653 | -17,587 | -58,265 | -87,935 | -110,839 | -554,195 | -4,766,077 | -23,830,385 |
Here are some more numbers to try:
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