A:
Positive:
1 x 305787655 x 61157537 x 436839535 x 87367997 x 315245485 x 63049679 x 450353395 x 9007
Negative:
-1 x -30578765-5 x -6115753-7 x -4368395-35 x -873679-97 x -315245-485 x -63049-679 x -45035-3395 x -9007
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 30,578,765, 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 | 30,578,765 | |
| -1 | -30,578,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,578,765.
Example:
1 x 30,578,765 = 30,578,765
and
-1 x -30,578,765 = 30,578,765
Notice both answers equal 30,578,765
With that explanation out of the way, let's continue. Next, we take the number 30,578,765 and divide it by 2:
30,578,765 ÷ 2 = 15,289,382.5
If the quotient is a whole number, then 2 and 15,289,382.5 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 | 30,578,765 | |
| -1 | -30,578,765 |
Now, we try dividing 30,578,765 by 3:
30,578,765 ÷ 3 = 10,192,921.6667
If the quotient is a whole number, then 3 and 10,192,921.6667 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 | 30,578,765 | |
| -1 | -30,578,765 |
Let's try dividing by 4:
30,578,765 ÷ 4 = 7,644,691.25
If the quotient is a whole number, then 4 and 7,644,691.25 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 | 30,578,765 | |
| -1 | 30,578,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 97 | 485 | 679 | 3,395 | 9,007 | 45,035 | 63,049 | 315,245 | 873,679 | 4,368,395 | 6,115,753 | 30,578,765 |
| -1 | -5 | -7 | -35 | -97 | -485 | -679 | -3,395 | -9,007 | -45,035 | -63,049 | -315,245 | -873,679 | -4,368,395 | -6,115,753 | -30,578,765 |
Here are some more numbers to try:
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