A:
Positive:
1 x 300854455 x 601708913 x 231426565 x 462853227 x 1325351135 x 265072039 x 147552951 x 10195
Negative:
-1 x -30085445-5 x -6017089-13 x -2314265-65 x -462853-227 x -132535-1135 x -26507-2039 x -14755-2951 x -10195
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 30,085,445, 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 | 30,085,445 | |
| -1 | -30,085,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,085,445.
Example:
1 x 30,085,445 = 30,085,445
and
-1 x -30,085,445 = 30,085,445
Notice both answers equal 30,085,445
With that explanation out of the way, let's continue. Next, we take the number 30,085,445 and divide it by 2:
30,085,445 ÷ 2 = 15,042,722.5
If the quotient is a whole number, then 2 and 15,042,722.5 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 | 30,085,445 | |
| -1 | -30,085,445 |
Now, we try dividing 30,085,445 by 3:
30,085,445 ÷ 3 = 10,028,481.6667
If the quotient is a whole number, then 3 and 10,028,481.6667 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 | 30,085,445 | |
| -1 | -30,085,445 |
Let's try dividing by 4:
30,085,445 ÷ 4 = 7,521,361.25
If the quotient is a whole number, then 4 and 7,521,361.25 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 | 30,085,445 | |
| -1 | 30,085,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 227 | 1,135 | 2,039 | 2,951 | 10,195 | 14,755 | 26,507 | 132,535 | 462,853 | 2,314,265 | 6,017,089 | 30,085,445 |
| -1 | -5 | -13 | -65 | -227 | -1,135 | -2,039 | -2,951 | -10,195 | -14,755 | -26,507 | -132,535 | -462,853 | -2,314,265 | -6,017,089 | -30,085,445 |
Here are some more numbers to try:
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