A:
Positive:
1 x 3013301323 x 131013173 x 412781131 x 230023137 x 2199491679 x 179473013 x 100013151 x 9563
Negative:
-1 x -30133013-23 x -1310131-73 x -412781-131 x -230023-137 x -219949-1679 x -17947-3013 x -10001-3151 x -9563
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 30,133,013, 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 | 30,133,013 | |
| -1 | -30,133,013 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,133,013.
Example:
1 x 30,133,013 = 30,133,013
and
-1 x -30,133,013 = 30,133,013
Notice both answers equal 30,133,013
With that explanation out of the way, let's continue. Next, we take the number 30,133,013 and divide it by 2:
30,133,013 ÷ 2 = 15,066,506.5
If the quotient is a whole number, then 2 and 15,066,506.5 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 | 30,133,013 | |
| -1 | -30,133,013 |
Now, we try dividing 30,133,013 by 3:
30,133,013 ÷ 3 = 10,044,337.6667
If the quotient is a whole number, then 3 and 10,044,337.6667 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 | 30,133,013 | |
| -1 | -30,133,013 |
Let's try dividing by 4:
30,133,013 ÷ 4 = 7,533,253.25
If the quotient is a whole number, then 4 and 7,533,253.25 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 | 30,133,013 | |
| -1 | 30,133,013 |
If you did it right, you will end up with this table:
| 1 | 23 | 73 | 131 | 137 | 1,679 | 3,013 | 3,151 | 9,563 | 10,001 | 17,947 | 219,949 | 230,023 | 412,781 | 1,310,131 | 30,133,013 |
| -1 | -23 | -73 | -131 | -137 | -1,679 | -3,013 | -3,151 | -9,563 | -10,001 | -17,947 | -219,949 | -230,023 | -412,781 | -1,310,131 | -30,133,013 |
Here are some more numbers to try:
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