A:
Positive:
1 x 2570278711 x 233661729 x 886303197 x 130471319 x 80573409 x 628432167 x 118614499 x 5713
Negative:
-1 x -25702787-11 x -2336617-29 x -886303-197 x -130471-319 x -80573-409 x -62843-2167 x -11861-4499 x -5713
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 25,702,787, 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 | 25,702,787 | |
| -1 | -25,702,787 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,702,787.
Example:
1 x 25,702,787 = 25,702,787
and
-1 x -25,702,787 = 25,702,787
Notice both answers equal 25,702,787
With that explanation out of the way, let's continue. Next, we take the number 25,702,787 and divide it by 2:
25,702,787 ÷ 2 = 12,851,393.5
If the quotient is a whole number, then 2 and 12,851,393.5 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 | 25,702,787 | |
| -1 | -25,702,787 |
Now, we try dividing 25,702,787 by 3:
25,702,787 ÷ 3 = 8,567,595.6667
If the quotient is a whole number, then 3 and 8,567,595.6667 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 | 25,702,787 | |
| -1 | -25,702,787 |
Let's try dividing by 4:
25,702,787 ÷ 4 = 6,425,696.75
If the quotient is a whole number, then 4 and 6,425,696.75 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 | 25,702,787 | |
| -1 | 25,702,787 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 197 | 319 | 409 | 2,167 | 4,499 | 5,713 | 11,861 | 62,843 | 80,573 | 130,471 | 886,303 | 2,336,617 | 25,702,787 |
| -1 | -11 | -29 | -197 | -319 | -409 | -2,167 | -4,499 | -5,713 | -11,861 | -62,843 | -80,573 | -130,471 | -886,303 | -2,336,617 | -25,702,787 |
Here are some more numbers to try:
Try the factor calculator