A:
Positive:
1 x 10402217 x 14860313 x 8001723 x 4522749 x 2122971 x 1465191 x 11431161 x 6461299 x 3479497 x 2093637 x 1633923 x 1127
Negative:
-1 x -1040221-7 x -148603-13 x -80017-23 x -45227-49 x -21229-71 x -14651-91 x -11431-161 x -6461-299 x -3479-497 x -2093-637 x -1633-923 x -1127
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 1,040,221, 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 | 1,040,221 | |
| -1 | -1,040,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,040,221.
Example:
1 x 1,040,221 = 1,040,221
and
-1 x -1,040,221 = 1,040,221
Notice both answers equal 1,040,221
With that explanation out of the way, let's continue. Next, we take the number 1,040,221 and divide it by 2:
1,040,221 ÷ 2 = 520,110.5
If the quotient is a whole number, then 2 and 520,110.5 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 | 1,040,221 | |
| -1 | -1,040,221 |
Now, we try dividing 1,040,221 by 3:
1,040,221 ÷ 3 = 346,740.3333
If the quotient is a whole number, then 3 and 346,740.3333 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 | 1,040,221 | |
| -1 | -1,040,221 |
Let's try dividing by 4:
1,040,221 ÷ 4 = 260,055.25
If the quotient is a whole number, then 4 and 260,055.25 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 | 1,040,221 | |
| -1 | 1,040,221 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 23 | 49 | 71 | 91 | 161 | 299 | 497 | 637 | 923 | 1,127 | 1,633 | 2,093 | 3,479 | 6,461 | 11,431 | 14,651 | 21,229 | 45,227 | 80,017 | 148,603 | 1,040,221 |
| -1 | -7 | -13 | -23 | -49 | -71 | -91 | -161 | -299 | -497 | -637 | -923 | -1,127 | -1,633 | -2,093 | -3,479 | -6,461 | -11,431 | -14,651 | -21,229 | -45,227 | -80,017 | -148,603 | -1,040,221 |
Here are some more numbers to try:
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