A:
Positive:
1 x 2579578313 x 198429117 x 1517399151 x 170833221 x 116723773 x 333711963 x 131412567 x 10049
Negative:
-1 x -25795783-13 x -1984291-17 x -1517399-151 x -170833-221 x -116723-773 x -33371-1963 x -13141-2567 x -10049
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 25,795,783, 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 | 25,795,783 | |
| -1 | -25,795,783 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,795,783.
Example:
1 x 25,795,783 = 25,795,783
and
-1 x -25,795,783 = 25,795,783
Notice both answers equal 25,795,783
With that explanation out of the way, let's continue. Next, we take the number 25,795,783 and divide it by 2:
25,795,783 ÷ 2 = 12,897,891.5
If the quotient is a whole number, then 2 and 12,897,891.5 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 | 25,795,783 | |
| -1 | -25,795,783 |
Now, we try dividing 25,795,783 by 3:
25,795,783 ÷ 3 = 8,598,594.3333
If the quotient is a whole number, then 3 and 8,598,594.3333 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 | 25,795,783 | |
| -1 | -25,795,783 |
Let's try dividing by 4:
25,795,783 ÷ 4 = 6,448,945.75
If the quotient is a whole number, then 4 and 6,448,945.75 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 | 25,795,783 | |
| -1 | 25,795,783 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 151 | 221 | 773 | 1,963 | 2,567 | 10,049 | 13,141 | 33,371 | 116,723 | 170,833 | 1,517,399 | 1,984,291 | 25,795,783 |
| -1 | -13 | -17 | -151 | -221 | -773 | -1,963 | -2,567 | -10,049 | -13,141 | -33,371 | -116,723 | -170,833 | -1,517,399 | -1,984,291 | -25,795,783 |
Here are some more numbers to try:
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