A:
Positive:
1 x 31577055 x 63154119 x 16619543 x 7343595 x 33239215 x 14687773 x 4085817 x 3865
Negative:
-1 x -3157705-5 x -631541-19 x -166195-43 x -73435-95 x -33239-215 x -14687-773 x -4085-817 x -3865
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 3,157,705, 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 | 3,157,705 | |
| -1 | -3,157,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,157,705.
Example:
1 x 3,157,705 = 3,157,705
and
-1 x -3,157,705 = 3,157,705
Notice both answers equal 3,157,705
With that explanation out of the way, let's continue. Next, we take the number 3,157,705 and divide it by 2:
3,157,705 ÷ 2 = 1,578,852.5
If the quotient is a whole number, then 2 and 1,578,852.5 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 | 3,157,705 | |
| -1 | -3,157,705 |
Now, we try dividing 3,157,705 by 3:
3,157,705 ÷ 3 = 1,052,568.3333
If the quotient is a whole number, then 3 and 1,052,568.3333 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 | 3,157,705 | |
| -1 | -3,157,705 |
Let's try dividing by 4:
3,157,705 ÷ 4 = 789,426.25
If the quotient is a whole number, then 4 and 789,426.25 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 | 3,157,705 | |
| -1 | 3,157,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 43 | 95 | 215 | 773 | 817 | 3,865 | 4,085 | 14,687 | 33,239 | 73,435 | 166,195 | 631,541 | 3,157,705 |
| -1 | -5 | -19 | -43 | -95 | -215 | -773 | -817 | -3,865 | -4,085 | -14,687 | -33,239 | -73,435 | -166,195 | -631,541 | -3,157,705 |
Here are some more numbers to try:
Try the factor calculator