A:
Positive:
1 x 31971055 x 63942117 x 18806529 x 11024585 x 37613145 x 22049493 x 64851297 x 2465
Negative:
-1 x -3197105-5 x -639421-17 x -188065-29 x -110245-85 x -37613-145 x -22049-493 x -6485-1297 x -2465
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 3,197,105, 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 | 3,197,105 | |
| -1 | -3,197,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,197,105.
Example:
1 x 3,197,105 = 3,197,105
and
-1 x -3,197,105 = 3,197,105
Notice both answers equal 3,197,105
With that explanation out of the way, let's continue. Next, we take the number 3,197,105 and divide it by 2:
3,197,105 ÷ 2 = 1,598,552.5
If the quotient is a whole number, then 2 and 1,598,552.5 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 | 3,197,105 | |
| -1 | -3,197,105 |
Now, we try dividing 3,197,105 by 3:
3,197,105 ÷ 3 = 1,065,701.6667
If the quotient is a whole number, then 3 and 1,065,701.6667 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 | 3,197,105 | |
| -1 | -3,197,105 |
Let's try dividing by 4:
3,197,105 ÷ 4 = 799,276.25
If the quotient is a whole number, then 4 and 799,276.25 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 | 3,197,105 | |
| -1 | 3,197,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 29 | 85 | 145 | 493 | 1,297 | 2,465 | 6,485 | 22,049 | 37,613 | 110,245 | 188,065 | 639,421 | 3,197,105 |
| -1 | -5 | -17 | -29 | -85 | -145 | -493 | -1,297 | -2,465 | -6,485 | -22,049 | -37,613 | -110,245 | -188,065 | -639,421 | -3,197,105 |
Here are some more numbers to try:
Try the factor calculator