A:
Positive:
1 x 31186617 x 44552313 x 23989743 x 7252791 x 34271301 x 10361559 x 5579797 x 3913
Negative:
-1 x -3118661-7 x -445523-13 x -239897-43 x -72527-91 x -34271-301 x -10361-559 x -5579-797 x -3913
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 3,118,661, 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 | 3,118,661 | |
| -1 | -3,118,661 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,118,661.
Example:
1 x 3,118,661 = 3,118,661
and
-1 x -3,118,661 = 3,118,661
Notice both answers equal 3,118,661
With that explanation out of the way, let's continue. Next, we take the number 3,118,661 and divide it by 2:
3,118,661 ÷ 2 = 1,559,330.5
If the quotient is a whole number, then 2 and 1,559,330.5 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 | 3,118,661 | |
| -1 | -3,118,661 |
Now, we try dividing 3,118,661 by 3:
3,118,661 ÷ 3 = 1,039,553.6667
If the quotient is a whole number, then 3 and 1,039,553.6667 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 | 3,118,661 | |
| -1 | -3,118,661 |
Let's try dividing by 4:
3,118,661 ÷ 4 = 779,665.25
If the quotient is a whole number, then 4 and 779,665.25 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 | 3,118,661 | |
| -1 | 3,118,661 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 43 | 91 | 301 | 559 | 797 | 3,913 | 5,579 | 10,361 | 34,271 | 72,527 | 239,897 | 445,523 | 3,118,661 |
| -1 | -7 | -13 | -43 | -91 | -301 | -559 | -797 | -3,913 | -5,579 | -10,361 | -34,271 | -72,527 | -239,897 | -445,523 | -3,118,661 |
Here are some more numbers to try:
Try the factor calculator