A:
Positive:
1 x 12312431313 x 947110119 x 648022723 x 5353231247 x 498479299 x 411787437 x 2817495681 x 21673
Negative:
-1 x -123124313-13 x -9471101-19 x -6480227-23 x -5353231-247 x -498479-299 x -411787-437 x -281749-5681 x -21673
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 123,124,313, 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 | 123,124,313 | |
| -1 | -123,124,313 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,124,313.
Example:
1 x 123,124,313 = 123,124,313
and
-1 x -123,124,313 = 123,124,313
Notice both answers equal 123,124,313
With that explanation out of the way, let's continue. Next, we take the number 123,124,313 and divide it by 2:
123,124,313 ÷ 2 = 61,562,156.5
If the quotient is a whole number, then 2 and 61,562,156.5 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 | 123,124,313 | |
| -1 | -123,124,313 |
Now, we try dividing 123,124,313 by 3:
123,124,313 ÷ 3 = 41,041,437.6667
If the quotient is a whole number, then 3 and 41,041,437.6667 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 | 123,124,313 | |
| -1 | -123,124,313 |
Let's try dividing by 4:
123,124,313 ÷ 4 = 30,781,078.25
If the quotient is a whole number, then 4 and 30,781,078.25 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 | 123,124,313 | |
| -1 | 123,124,313 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 23 | 247 | 299 | 437 | 5,681 | 21,673 | 281,749 | 411,787 | 498,479 | 5,353,231 | 6,480,227 | 9,471,101 | 123,124,313 |
| -1 | -13 | -19 | -23 | -247 | -299 | -437 | -5,681 | -21,673 | -281,749 | -411,787 | -498,479 | -5,353,231 | -6,480,227 | -9,471,101 | -123,124,313 |
Here are some more numbers to try:
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