A:
Positive:
1 x 731287317 x 43016923 x 31795159 x 123947317 x 23069391 x 187031003 x 72911357 x 5389
Negative:
-1 x -7312873-17 x -430169-23 x -317951-59 x -123947-317 x -23069-391 x -18703-1003 x -7291-1357 x -5389
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 7,312,873, 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 | 7,312,873 | |
| -1 | -7,312,873 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,312,873.
Example:
1 x 7,312,873 = 7,312,873
and
-1 x -7,312,873 = 7,312,873
Notice both answers equal 7,312,873
With that explanation out of the way, let's continue. Next, we take the number 7,312,873 and divide it by 2:
7,312,873 ÷ 2 = 3,656,436.5
If the quotient is a whole number, then 2 and 3,656,436.5 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 | 7,312,873 | |
| -1 | -7,312,873 |
Now, we try dividing 7,312,873 by 3:
7,312,873 ÷ 3 = 2,437,624.3333
If the quotient is a whole number, then 3 and 2,437,624.3333 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 | 7,312,873 | |
| -1 | -7,312,873 |
Let's try dividing by 4:
7,312,873 ÷ 4 = 1,828,218.25
If the quotient is a whole number, then 4 and 1,828,218.25 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 | 7,312,873 | |
| -1 | 7,312,873 |
If you did it right, you will end up with this table:
| 1 | 17 | 23 | 59 | 317 | 391 | 1,003 | 1,357 | 5,389 | 7,291 | 18,703 | 23,069 | 123,947 | 317,951 | 430,169 | 7,312,873 |
| -1 | -17 | -23 | -59 | -317 | -391 | -1,003 | -1,357 | -5,389 | -7,291 | -18,703 | -23,069 | -123,947 | -317,951 | -430,169 | -7,312,873 |
Here are some more numbers to try:
Try the factor calculator