A:
Positive:
1 x 2589256329 x 89284737 x 69979959 x 438857409 x 633071073 x 241311711 x 151332183 x 11861
Negative:
-1 x -25892563-29 x -892847-37 x -699799-59 x -438857-409 x -63307-1073 x -24131-1711 x -15133-2183 x -11861
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 25,892,563, 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 | 25,892,563 | |
| -1 | -25,892,563 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,892,563.
Example:
1 x 25,892,563 = 25,892,563
and
-1 x -25,892,563 = 25,892,563
Notice both answers equal 25,892,563
With that explanation out of the way, let's continue. Next, we take the number 25,892,563 and divide it by 2:
25,892,563 ÷ 2 = 12,946,281.5
If the quotient is a whole number, then 2 and 12,946,281.5 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 | 25,892,563 | |
| -1 | -25,892,563 |
Now, we try dividing 25,892,563 by 3:
25,892,563 ÷ 3 = 8,630,854.3333
If the quotient is a whole number, then 3 and 8,630,854.3333 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 | 25,892,563 | |
| -1 | -25,892,563 |
Let's try dividing by 4:
25,892,563 ÷ 4 = 6,473,140.75
If the quotient is a whole number, then 4 and 6,473,140.75 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 | 25,892,563 | |
| -1 | 25,892,563 |
If you did it right, you will end up with this table:
| 1 | 29 | 37 | 59 | 409 | 1,073 | 1,711 | 2,183 | 11,861 | 15,133 | 24,131 | 63,307 | 438,857 | 699,799 | 892,847 | 25,892,563 |
| -1 | -29 | -37 | -59 | -409 | -1,073 | -1,711 | -2,183 | -11,861 | -15,133 | -24,131 | -63,307 | -438,857 | -699,799 | -892,847 | -25,892,563 |
Here are some more numbers to try:
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