A:
Positive:
1 x 304757055 x 609514113 x 234428565 x 468857397 x 767651181 x 258051985 x 153535161 x 5905
Negative:
-1 x -30475705-5 x -6095141-13 x -2344285-65 x -468857-397 x -76765-1181 x -25805-1985 x -15353-5161 x -5905
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 30,475,705, 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 | 30,475,705 | |
| -1 | -30,475,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,475,705.
Example:
1 x 30,475,705 = 30,475,705
and
-1 x -30,475,705 = 30,475,705
Notice both answers equal 30,475,705
With that explanation out of the way, let's continue. Next, we take the number 30,475,705 and divide it by 2:
30,475,705 ÷ 2 = 15,237,852.5
If the quotient is a whole number, then 2 and 15,237,852.5 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 | 30,475,705 | |
| -1 | -30,475,705 |
Now, we try dividing 30,475,705 by 3:
30,475,705 ÷ 3 = 10,158,568.3333
If the quotient is a whole number, then 3 and 10,158,568.3333 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 | 30,475,705 | |
| -1 | -30,475,705 |
Let's try dividing by 4:
30,475,705 ÷ 4 = 7,618,926.25
If the quotient is a whole number, then 4 and 7,618,926.25 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 | 30,475,705 | |
| -1 | 30,475,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 397 | 1,181 | 1,985 | 5,161 | 5,905 | 15,353 | 25,805 | 76,765 | 468,857 | 2,344,285 | 6,095,141 | 30,475,705 |
| -1 | -5 | -13 | -65 | -397 | -1,181 | -1,985 | -5,161 | -5,905 | -15,353 | -25,805 | -76,765 | -468,857 | -2,344,285 | -6,095,141 | -30,475,705 |
Here are some more numbers to try:
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