A:
Positive:
1 x 31561255 x 6312257 x 45087525 x 12624535 x 90175125 x 25249175 x 18035875 x 3607
Negative:
-1 x -3156125-5 x -631225-7 x -450875-25 x -126245-35 x -90175-125 x -25249-175 x -18035-875 x -3607
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 3,156,125, 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 | 3,156,125 | |
| -1 | -3,156,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,156,125.
Example:
1 x 3,156,125 = 3,156,125
and
-1 x -3,156,125 = 3,156,125
Notice both answers equal 3,156,125
With that explanation out of the way, let's continue. Next, we take the number 3,156,125 and divide it by 2:
3,156,125 ÷ 2 = 1,578,062.5
If the quotient is a whole number, then 2 and 1,578,062.5 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 | 3,156,125 | |
| -1 | -3,156,125 |
Now, we try dividing 3,156,125 by 3:
3,156,125 ÷ 3 = 1,052,041.6667
If the quotient is a whole number, then 3 and 1,052,041.6667 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 | 3,156,125 | |
| -1 | -3,156,125 |
Let's try dividing by 4:
3,156,125 ÷ 4 = 789,031.25
If the quotient is a whole number, then 4 and 789,031.25 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 | 3,156,125 | |
| -1 | 3,156,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 125 | 175 | 875 | 3,607 | 18,035 | 25,249 | 90,175 | 126,245 | 450,875 | 631,225 | 3,156,125 |
| -1 | -5 | -7 | -25 | -35 | -125 | -175 | -875 | -3,607 | -18,035 | -25,249 | -90,175 | -126,245 | -450,875 | -631,225 | -3,156,125 |
Here are some more numbers to try:
Try the factor calculator