A:
Positive:
1 x 18184397 x 25977717 x 10696737 x 4914749 x 3711159 x 30821119 x 15281259 x 7021413 x 4403629 x 2891833 x 21831003 x 1813
Negative:
-1 x -1818439-7 x -259777-17 x -106967-37 x -49147-49 x -37111-59 x -30821-119 x -15281-259 x -7021-413 x -4403-629 x -2891-833 x -2183-1003 x -1813
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 1,818,439, 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 | 1,818,439 | |
| -1 | -1,818,439 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,818,439.
Example:
1 x 1,818,439 = 1,818,439
and
-1 x -1,818,439 = 1,818,439
Notice both answers equal 1,818,439
With that explanation out of the way, let's continue. Next, we take the number 1,818,439 and divide it by 2:
1,818,439 ÷ 2 = 909,219.5
If the quotient is a whole number, then 2 and 909,219.5 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 | 1,818,439 | |
| -1 | -1,818,439 |
Now, we try dividing 1,818,439 by 3:
1,818,439 ÷ 3 = 606,146.3333
If the quotient is a whole number, then 3 and 606,146.3333 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 | 1,818,439 | |
| -1 | -1,818,439 |
Let's try dividing by 4:
1,818,439 ÷ 4 = 454,609.75
If the quotient is a whole number, then 4 and 454,609.75 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 | 1,818,439 | |
| -1 | 1,818,439 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 37 | 49 | 59 | 119 | 259 | 413 | 629 | 833 | 1,003 | 1,813 | 2,183 | 2,891 | 4,403 | 7,021 | 15,281 | 30,821 | 37,111 | 49,147 | 106,967 | 259,777 | 1,818,439 |
| -1 | -7 | -17 | -37 | -49 | -59 | -119 | -259 | -413 | -629 | -833 | -1,003 | -1,813 | -2,183 | -2,891 | -4,403 | -7,021 | -15,281 | -30,821 | -37,111 | -49,147 | -106,967 | -259,777 | -1,818,439 |
Here are some more numbers to try:
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