A:
Positive:
1 x 313382455 x 626764967 x 467735139 x 225455335 x 93547673 x 46565695 x 450913365 x 9313
Negative:
-1 x -31338245-5 x -6267649-67 x -467735-139 x -225455-335 x -93547-673 x -46565-695 x -45091-3365 x -9313
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 31,338,245, 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 | 31,338,245 | |
| -1 | -31,338,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,338,245.
Example:
1 x 31,338,245 = 31,338,245
and
-1 x -31,338,245 = 31,338,245
Notice both answers equal 31,338,245
With that explanation out of the way, let's continue. Next, we take the number 31,338,245 and divide it by 2:
31,338,245 ÷ 2 = 15,669,122.5
If the quotient is a whole number, then 2 and 15,669,122.5 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 | 31,338,245 | |
| -1 | -31,338,245 |
Now, we try dividing 31,338,245 by 3:
31,338,245 ÷ 3 = 10,446,081.6667
If the quotient is a whole number, then 3 and 10,446,081.6667 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 | 31,338,245 | |
| -1 | -31,338,245 |
Let's try dividing by 4:
31,338,245 ÷ 4 = 7,834,561.25
If the quotient is a whole number, then 4 and 7,834,561.25 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 | 31,338,245 | |
| -1 | 31,338,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 139 | 335 | 673 | 695 | 3,365 | 9,313 | 45,091 | 46,565 | 93,547 | 225,455 | 467,735 | 6,267,649 | 31,338,245 |
| -1 | -5 | -67 | -139 | -335 | -673 | -695 | -3,365 | -9,313 | -45,091 | -46,565 | -93,547 | -225,455 | -467,735 | -6,267,649 | -31,338,245 |
Here are some more numbers to try:
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