A:
Positive:
1 x 255342717 x 364775319 x 1343909113 x 225967133 x 191987791 x 322811699 x 150292147 x 11893
Negative:
-1 x -25534271-7 x -3647753-19 x -1343909-113 x -225967-133 x -191987-791 x -32281-1699 x -15029-2147 x -11893
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 25,534,271, 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 | 25,534,271 | |
| -1 | -25,534,271 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,534,271.
Example:
1 x 25,534,271 = 25,534,271
and
-1 x -25,534,271 = 25,534,271
Notice both answers equal 25,534,271
With that explanation out of the way, let's continue. Next, we take the number 25,534,271 and divide it by 2:
25,534,271 ÷ 2 = 12,767,135.5
If the quotient is a whole number, then 2 and 12,767,135.5 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 | 25,534,271 | |
| -1 | -25,534,271 |
Now, we try dividing 25,534,271 by 3:
25,534,271 ÷ 3 = 8,511,423.6667
If the quotient is a whole number, then 3 and 8,511,423.6667 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 | 25,534,271 | |
| -1 | -25,534,271 |
Let's try dividing by 4:
25,534,271 ÷ 4 = 6,383,567.75
If the quotient is a whole number, then 4 and 6,383,567.75 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 | 25,534,271 | |
| -1 | 25,534,271 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 113 | 133 | 791 | 1,699 | 2,147 | 11,893 | 15,029 | 32,281 | 191,987 | 225,967 | 1,343,909 | 3,647,753 | 25,534,271 |
| -1 | -7 | -19 | -113 | -133 | -791 | -1,699 | -2,147 | -11,893 | -15,029 | -32,281 | -191,987 | -225,967 | -1,343,909 | -3,647,753 | -25,534,271 |
Here are some more numbers to try:
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