A:
Positive:
1 x 175082817 x 250118361 x 287021131 x 133651313 x 55937427 x 41003917 x 190932191 x 7991
Negative:
-1 x -17508281-7 x -2501183-61 x -287021-131 x -133651-313 x -55937-427 x -41003-917 x -19093-2191 x -7991
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 17,508,281, 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 | 17,508,281 | |
| -1 | -17,508,281 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 17,508,281.
Example:
1 x 17,508,281 = 17,508,281
and
-1 x -17,508,281 = 17,508,281
Notice both answers equal 17,508,281
With that explanation out of the way, let's continue. Next, we take the number 17,508,281 and divide it by 2:
17,508,281 ÷ 2 = 8,754,140.5
If the quotient is a whole number, then 2 and 8,754,140.5 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 | 17,508,281 | |
| -1 | -17,508,281 |
Now, we try dividing 17,508,281 by 3:
17,508,281 ÷ 3 = 5,836,093.6667
If the quotient is a whole number, then 3 and 5,836,093.6667 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 | 17,508,281 | |
| -1 | -17,508,281 |
Let's try dividing by 4:
17,508,281 ÷ 4 = 4,377,070.25
If the quotient is a whole number, then 4 and 4,377,070.25 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 | 17,508,281 | |
| -1 | 17,508,281 |
If you did it right, you will end up with this table:
| 1 | 7 | 61 | 131 | 313 | 427 | 917 | 2,191 | 7,991 | 19,093 | 41,003 | 55,937 | 133,651 | 287,021 | 2,501,183 | 17,508,281 |
| -1 | -7 | -61 | -131 | -313 | -427 | -917 | -2,191 | -7,991 | -19,093 | -41,003 | -55,937 | -133,651 | -287,021 | -2,501,183 | -17,508,281 |
Here are some more numbers to try:
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