A:
Positive:
1 x 2560840711 x 232803723 x 1113409127 x 201641253 x 101219797 x 321311397 x 183312921 x 8767
Negative:
-1 x -25608407-11 x -2328037-23 x -1113409-127 x -201641-253 x -101219-797 x -32131-1397 x -18331-2921 x -8767
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 25,608,407, 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 | 25,608,407 | |
| -1 | -25,608,407 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,608,407.
Example:
1 x 25,608,407 = 25,608,407
and
-1 x -25,608,407 = 25,608,407
Notice both answers equal 25,608,407
With that explanation out of the way, let's continue. Next, we take the number 25,608,407 and divide it by 2:
25,608,407 ÷ 2 = 12,804,203.5
If the quotient is a whole number, then 2 and 12,804,203.5 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 | 25,608,407 | |
| -1 | -25,608,407 |
Now, we try dividing 25,608,407 by 3:
25,608,407 ÷ 3 = 8,536,135.6667
If the quotient is a whole number, then 3 and 8,536,135.6667 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 | 25,608,407 | |
| -1 | -25,608,407 |
Let's try dividing by 4:
25,608,407 ÷ 4 = 6,402,101.75
If the quotient is a whole number, then 4 and 6,402,101.75 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 | 25,608,407 | |
| -1 | 25,608,407 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 127 | 253 | 797 | 1,397 | 2,921 | 8,767 | 18,331 | 32,131 | 101,219 | 201,641 | 1,113,409 | 2,328,037 | 25,608,407 |
| -1 | -11 | -23 | -127 | -253 | -797 | -1,397 | -2,921 | -8,767 | -18,331 | -32,131 | -101,219 | -201,641 | -1,113,409 | -2,328,037 | -25,608,407 |
Here are some more numbers to try:
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