A:
Positive:
1 x 301623497 x 430890729 x 104008131 x 972979203 x 148583217 x 138997899 x 335514793 x 6293
Negative:
-1 x -30162349-7 x -4308907-29 x -1040081-31 x -972979-203 x -148583-217 x -138997-899 x -33551-4793 x -6293
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 30,162,349, 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 | 30,162,349 | |
| -1 | -30,162,349 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,162,349.
Example:
1 x 30,162,349 = 30,162,349
and
-1 x -30,162,349 = 30,162,349
Notice both answers equal 30,162,349
With that explanation out of the way, let's continue. Next, we take the number 30,162,349 and divide it by 2:
30,162,349 ÷ 2 = 15,081,174.5
If the quotient is a whole number, then 2 and 15,081,174.5 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 | 30,162,349 | |
| -1 | -30,162,349 |
Now, we try dividing 30,162,349 by 3:
30,162,349 ÷ 3 = 10,054,116.3333
If the quotient is a whole number, then 3 and 10,054,116.3333 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 | 30,162,349 | |
| -1 | -30,162,349 |
Let's try dividing by 4:
30,162,349 ÷ 4 = 7,540,587.25
If the quotient is a whole number, then 4 and 7,540,587.25 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 | 30,162,349 | |
| -1 | 30,162,349 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 31 | 203 | 217 | 899 | 4,793 | 6,293 | 33,551 | 138,997 | 148,583 | 972,979 | 1,040,081 | 4,308,907 | 30,162,349 |
| -1 | -7 | -29 | -31 | -203 | -217 | -899 | -4,793 | -6,293 | -33,551 | -138,997 | -148,583 | -972,979 | -1,040,081 | -4,308,907 | -30,162,349 |
Here are some more numbers to try:
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