A:
Positive:
1 x 255848155 x 511696329 x 882235101 x 253315145 x 176447505 x 506631747 x 146452929 x 8735
Negative:
-1 x -25584815-5 x -5116963-29 x -882235-101 x -253315-145 x -176447-505 x -50663-1747 x -14645-2929 x -8735
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 25,584,815, 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 | 25,584,815 | |
| -1 | -25,584,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,584,815.
Example:
1 x 25,584,815 = 25,584,815
and
-1 x -25,584,815 = 25,584,815
Notice both answers equal 25,584,815
With that explanation out of the way, let's continue. Next, we take the number 25,584,815 and divide it by 2:
25,584,815 ÷ 2 = 12,792,407.5
If the quotient is a whole number, then 2 and 12,792,407.5 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 | 25,584,815 | |
| -1 | -25,584,815 |
Now, we try dividing 25,584,815 by 3:
25,584,815 ÷ 3 = 8,528,271.6667
If the quotient is a whole number, then 3 and 8,528,271.6667 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 | 25,584,815 | |
| -1 | -25,584,815 |
Let's try dividing by 4:
25,584,815 ÷ 4 = 6,396,203.75
If the quotient is a whole number, then 4 and 6,396,203.75 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 | 25,584,815 | |
| -1 | 25,584,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 101 | 145 | 505 | 1,747 | 2,929 | 8,735 | 14,645 | 50,663 | 176,447 | 253,315 | 882,235 | 5,116,963 | 25,584,815 |
| -1 | -5 | -29 | -101 | -145 | -505 | -1,747 | -2,929 | -8,735 | -14,645 | -50,663 | -176,447 | -253,315 | -882,235 | -5,116,963 | -25,584,815 |
Here are some more numbers to try:
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