A:
Positive:
1 x 31257855 x 62515713 x 24044519 x 16451565 x 4808995 x 32903247 x 126551235 x 2531
Negative:
-1 x -3125785-5 x -625157-13 x -240445-19 x -164515-65 x -48089-95 x -32903-247 x -12655-1235 x -2531
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 3,125,785, 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 | 3,125,785 | |
| -1 | -3,125,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,125,785.
Example:
1 x 3,125,785 = 3,125,785
and
-1 x -3,125,785 = 3,125,785
Notice both answers equal 3,125,785
With that explanation out of the way, let's continue. Next, we take the number 3,125,785 and divide it by 2:
3,125,785 ÷ 2 = 1,562,892.5
If the quotient is a whole number, then 2 and 1,562,892.5 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 | 3,125,785 | |
| -1 | -3,125,785 |
Now, we try dividing 3,125,785 by 3:
3,125,785 ÷ 3 = 1,041,928.3333
If the quotient is a whole number, then 3 and 1,041,928.3333 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 | 3,125,785 | |
| -1 | -3,125,785 |
Let's try dividing by 4:
3,125,785 ÷ 4 = 781,446.25
If the quotient is a whole number, then 4 and 781,446.25 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 | 3,125,785 | |
| -1 | 3,125,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 65 | 95 | 247 | 1,235 | 2,531 | 12,655 | 32,903 | 48,089 | 164,515 | 240,445 | 625,157 | 3,125,785 |
| -1 | -5 | -13 | -19 | -65 | -95 | -247 | -1,235 | -2,531 | -12,655 | -32,903 | -48,089 | -164,515 | -240,445 | -625,157 | -3,125,785 |
Here are some more numbers to try:
Try the factor calculator