A:
Positive:
1 x 31303130313 x 2407933153 x 590625167 x 4672109689 x 454327871 x 3593933551 x 881536781 x 46163
Negative:
-1 x -313031303-13 x -24079331-53 x -5906251-67 x -4672109-689 x -454327-871 x -359393-3551 x -88153-6781 x -46163
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 313,031,303, 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 | 313,031,303 | |
| -1 | -313,031,303 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 313,031,303.
Example:
1 x 313,031,303 = 313,031,303
and
-1 x -313,031,303 = 313,031,303
Notice both answers equal 313,031,303
With that explanation out of the way, let's continue. Next, we take the number 313,031,303 and divide it by 2:
313,031,303 ÷ 2 = 156,515,651.5
If the quotient is a whole number, then 2 and 156,515,651.5 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 | 313,031,303 | |
| -1 | -313,031,303 |
Now, we try dividing 313,031,303 by 3:
313,031,303 ÷ 3 = 104,343,767.6667
If the quotient is a whole number, then 3 and 104,343,767.6667 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 | 313,031,303 | |
| -1 | -313,031,303 |
Let's try dividing by 4:
313,031,303 ÷ 4 = 78,257,825.75
If the quotient is a whole number, then 4 and 78,257,825.75 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 | 313,031,303 | |
| -1 | 313,031,303 |
If you did it right, you will end up with this table:
| 1 | 13 | 53 | 67 | 689 | 871 | 3,551 | 6,781 | 46,163 | 88,153 | 359,393 | 454,327 | 4,672,109 | 5,906,251 | 24,079,331 | 313,031,303 |
| -1 | -13 | -53 | -67 | -689 | -871 | -3,551 | -6,781 | -46,163 | -88,153 | -359,393 | -454,327 | -4,672,109 | -5,906,251 | -24,079,331 | -313,031,303 |
Here are some more numbers to try:
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