A:
Positive:
1 x 972847117 x 57226323 x 422977139 x 69989179 x 54349391 x 248812363 x 41173043 x 3197
Negative:
-1 x -9728471-17 x -572263-23 x -422977-139 x -69989-179 x -54349-391 x -24881-2363 x -4117-3043 x -3197
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 9,728,471, 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 | 9,728,471 | |
| -1 | -9,728,471 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,728,471.
Example:
1 x 9,728,471 = 9,728,471
and
-1 x -9,728,471 = 9,728,471
Notice both answers equal 9,728,471
With that explanation out of the way, let's continue. Next, we take the number 9,728,471 and divide it by 2:
9,728,471 ÷ 2 = 4,864,235.5
If the quotient is a whole number, then 2 and 4,864,235.5 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 | 9,728,471 | |
| -1 | -9,728,471 |
Now, we try dividing 9,728,471 by 3:
9,728,471 ÷ 3 = 3,242,823.6667
If the quotient is a whole number, then 3 and 3,242,823.6667 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 | 9,728,471 | |
| -1 | -9,728,471 |
Let's try dividing by 4:
9,728,471 ÷ 4 = 2,432,117.75
If the quotient is a whole number, then 4 and 2,432,117.75 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 | 9,728,471 | |
| -1 | 9,728,471 |
If you did it right, you will end up with this table:
| 1 | 17 | 23 | 139 | 179 | 391 | 2,363 | 3,043 | 3,197 | 4,117 | 24,881 | 54,349 | 69,989 | 422,977 | 572,263 | 9,728,471 |
| -1 | -17 | -23 | -139 | -179 | -391 | -2,363 | -3,043 | -3,197 | -4,117 | -24,881 | -54,349 | -69,989 | -422,977 | -572,263 | -9,728,471 |
Here are some more numbers to try:
Try the factor calculator