A:
Positive:
1 x 3008848711 x 273531713 x 231449917 x 1769911143 x 210409187 x 160901221 x 1361472431 x 12377
Negative:
-1 x -30088487-11 x -2735317-13 x -2314499-17 x -1769911-143 x -210409-187 x -160901-221 x -136147-2431 x -12377
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 30,088,487, 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 | 30,088,487 | |
| -1 | -30,088,487 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,088,487.
Example:
1 x 30,088,487 = 30,088,487
and
-1 x -30,088,487 = 30,088,487
Notice both answers equal 30,088,487
With that explanation out of the way, let's continue. Next, we take the number 30,088,487 and divide it by 2:
30,088,487 ÷ 2 = 15,044,243.5
If the quotient is a whole number, then 2 and 15,044,243.5 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 | 30,088,487 | |
| -1 | -30,088,487 |
Now, we try dividing 30,088,487 by 3:
30,088,487 ÷ 3 = 10,029,495.6667
If the quotient is a whole number, then 3 and 10,029,495.6667 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 | 30,088,487 | |
| -1 | -30,088,487 |
Let's try dividing by 4:
30,088,487 ÷ 4 = 7,522,121.75
If the quotient is a whole number, then 4 and 7,522,121.75 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 | 30,088,487 | |
| -1 | 30,088,487 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 17 | 143 | 187 | 221 | 2,431 | 12,377 | 136,147 | 160,901 | 210,409 | 1,769,911 | 2,314,499 | 2,735,317 | 30,088,487 |
| -1 | -11 | -13 | -17 | -143 | -187 | -221 | -2,431 | -12,377 | -136,147 | -160,901 | -210,409 | -1,769,911 | -2,314,499 | -2,735,317 | -30,088,487 |
Here are some more numbers to try:
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