A:
Positive:
1 x 305475177 x 436393111 x 277704713 x 234980977 x 39672191 x 335687143 x 2136191001 x 30517
Negative:
-1 x -30547517-7 x -4363931-11 x -2777047-13 x -2349809-77 x -396721-91 x -335687-143 x -213619-1001 x -30517
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 30,547,517, 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 | 30,547,517 | |
| -1 | -30,547,517 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,547,517.
Example:
1 x 30,547,517 = 30,547,517
and
-1 x -30,547,517 = 30,547,517
Notice both answers equal 30,547,517
With that explanation out of the way, let's continue. Next, we take the number 30,547,517 and divide it by 2:
30,547,517 ÷ 2 = 15,273,758.5
If the quotient is a whole number, then 2 and 15,273,758.5 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 | 30,547,517 | |
| -1 | -30,547,517 |
Now, we try dividing 30,547,517 by 3:
30,547,517 ÷ 3 = 10,182,505.6667
If the quotient is a whole number, then 3 and 10,182,505.6667 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 | 30,547,517 | |
| -1 | -30,547,517 |
Let's try dividing by 4:
30,547,517 ÷ 4 = 7,636,879.25
If the quotient is a whole number, then 4 and 7,636,879.25 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 | 30,547,517 | |
| -1 | 30,547,517 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 13 | 77 | 91 | 143 | 1,001 | 30,517 | 213,619 | 335,687 | 396,721 | 2,349,809 | 2,777,047 | 4,363,931 | 30,547,517 |
| -1 | -7 | -11 | -13 | -77 | -91 | -143 | -1,001 | -30,517 | -213,619 | -335,687 | -396,721 | -2,349,809 | -2,777,047 | -4,363,931 | -30,547,517 |
Here are some more numbers to try:
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