A:
Positive:
1 x 78966255 x 157932511 x 71787525 x 31586555 x 143575125 x 63173275 x 287151375 x 5743
Negative:
-1 x -7896625-5 x -1579325-11 x -717875-25 x -315865-55 x -143575-125 x -63173-275 x -28715-1375 x -5743
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 7,896,625, 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 | 7,896,625 | |
| -1 | -7,896,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 7,896,625.
Example:
1 x 7,896,625 = 7,896,625
and
-1 x -7,896,625 = 7,896,625
Notice both answers equal 7,896,625
With that explanation out of the way, let's continue. Next, we take the number 7,896,625 and divide it by 2:
7,896,625 ÷ 2 = 3,948,312.5
If the quotient is a whole number, then 2 and 3,948,312.5 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 | 7,896,625 | |
| -1 | -7,896,625 |
Now, we try dividing 7,896,625 by 3:
7,896,625 ÷ 3 = 2,632,208.3333
If the quotient is a whole number, then 3 and 2,632,208.3333 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 | 7,896,625 | |
| -1 | -7,896,625 |
Let's try dividing by 4:
7,896,625 ÷ 4 = 1,974,156.25
If the quotient is a whole number, then 4 and 1,974,156.25 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 | 7,896,625 | |
| -1 | 7,896,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 125 | 275 | 1,375 | 5,743 | 28,715 | 63,173 | 143,575 | 315,865 | 717,875 | 1,579,325 | 7,896,625 |
| -1 | -5 | -11 | -25 | -55 | -125 | -275 | -1,375 | -5,743 | -28,715 | -63,173 | -143,575 | -315,865 | -717,875 | -1,579,325 | -7,896,625 |
Here are some more numbers to try:
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