A:
Positive:
1 x 313052455 x 626104917 x 184148553 x 59066585 x 368297265 x 118133901 x 347454505 x 6949
Negative:
-1 x -31305245-5 x -6261049-17 x -1841485-53 x -590665-85 x -368297-265 x -118133-901 x -34745-4505 x -6949
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 31,305,245, 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 | 31,305,245 | |
| -1 | -31,305,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,305,245.
Example:
1 x 31,305,245 = 31,305,245
and
-1 x -31,305,245 = 31,305,245
Notice both answers equal 31,305,245
With that explanation out of the way, let's continue. Next, we take the number 31,305,245 and divide it by 2:
31,305,245 ÷ 2 = 15,652,622.5
If the quotient is a whole number, then 2 and 15,652,622.5 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 | 31,305,245 | |
| -1 | -31,305,245 |
Now, we try dividing 31,305,245 by 3:
31,305,245 ÷ 3 = 10,435,081.6667
If the quotient is a whole number, then 3 and 10,435,081.6667 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 | 31,305,245 | |
| -1 | -31,305,245 |
Let's try dividing by 4:
31,305,245 ÷ 4 = 7,826,311.25
If the quotient is a whole number, then 4 and 7,826,311.25 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 | 31,305,245 | |
| -1 | 31,305,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 53 | 85 | 265 | 901 | 4,505 | 6,949 | 34,745 | 118,133 | 368,297 | 590,665 | 1,841,485 | 6,261,049 | 31,305,245 |
| -1 | -5 | -17 | -53 | -85 | -265 | -901 | -4,505 | -6,949 | -34,745 | -118,133 | -368,297 | -590,665 | -1,841,485 | -6,261,049 | -31,305,245 |
Here are some more numbers to try:
Try the factor calculator