A:
Positive:
1 x 12257055 x 24514113 x 9428565 x 18857109 x 11245173 x 7085545 x 2249865 x 1417
Negative:
-1 x -1225705-5 x -245141-13 x -94285-65 x -18857-109 x -11245-173 x -7085-545 x -2249-865 x -1417
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 1,225,705, 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 | 1,225,705 | |
| -1 | -1,225,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,225,705.
Example:
1 x 1,225,705 = 1,225,705
and
-1 x -1,225,705 = 1,225,705
Notice both answers equal 1,225,705
With that explanation out of the way, let's continue. Next, we take the number 1,225,705 and divide it by 2:
1,225,705 ÷ 2 = 612,852.5
If the quotient is a whole number, then 2 and 612,852.5 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 | 1,225,705 | |
| -1 | -1,225,705 |
Now, we try dividing 1,225,705 by 3:
1,225,705 ÷ 3 = 408,568.3333
If the quotient is a whole number, then 3 and 408,568.3333 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 | 1,225,705 | |
| -1 | -1,225,705 |
Let's try dividing by 4:
1,225,705 ÷ 4 = 306,426.25
If the quotient is a whole number, then 4 and 306,426.25 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 | 1,225,705 | |
| -1 | 1,225,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 109 | 173 | 545 | 865 | 1,417 | 2,249 | 7,085 | 11,245 | 18,857 | 94,285 | 245,141 | 1,225,705 |
| -1 | -5 | -13 | -65 | -109 | -173 | -545 | -865 | -1,417 | -2,249 | -7,085 | -11,245 | -18,857 | -94,285 | -245,141 | -1,225,705 |
Here are some more numbers to try:
Try the factor calculator