A:
Positive:
1 x 255317237 x 364738943 x 593761271 x 94213301 x 84823313 x 815711897 x 134592191 x 11653
Negative:
-1 x -25531723-7 x -3647389-43 x -593761-271 x -94213-301 x -84823-313 x -81571-1897 x -13459-2191 x -11653
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 25,531,723, 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 | 25,531,723 | |
| -1 | -25,531,723 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,531,723.
Example:
1 x 25,531,723 = 25,531,723
and
-1 x -25,531,723 = 25,531,723
Notice both answers equal 25,531,723
With that explanation out of the way, let's continue. Next, we take the number 25,531,723 and divide it by 2:
25,531,723 ÷ 2 = 12,765,861.5
If the quotient is a whole number, then 2 and 12,765,861.5 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 | 25,531,723 | |
| -1 | -25,531,723 |
Now, we try dividing 25,531,723 by 3:
25,531,723 ÷ 3 = 8,510,574.3333
If the quotient is a whole number, then 3 and 8,510,574.3333 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 | 25,531,723 | |
| -1 | -25,531,723 |
Let's try dividing by 4:
25,531,723 ÷ 4 = 6,382,930.75
If the quotient is a whole number, then 4 and 6,382,930.75 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 | 25,531,723 | |
| -1 | 25,531,723 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 271 | 301 | 313 | 1,897 | 2,191 | 11,653 | 13,459 | 81,571 | 84,823 | 94,213 | 593,761 | 3,647,389 | 25,531,723 |
| -1 | -7 | -43 | -271 | -301 | -313 | -1,897 | -2,191 | -11,653 | -13,459 | -81,571 | -84,823 | -94,213 | -593,761 | -3,647,389 | -25,531,723 |
Here are some more numbers to try:
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