A:
Positive:
1 x 259030755 x 518061511 x 235482525 x 103612355 x 470965121 x 214075275 x 94193605 x 428153025 x 8563
Negative:
-1 x -25903075-5 x -5180615-11 x -2354825-25 x -1036123-55 x -470965-121 x -214075-275 x -94193-605 x -42815-3025 x -8563
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 25,903,075, 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 | 25,903,075 | |
| -1 | -25,903,075 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,903,075.
Example:
1 x 25,903,075 = 25,903,075
and
-1 x -25,903,075 = 25,903,075
Notice both answers equal 25,903,075
With that explanation out of the way, let's continue. Next, we take the number 25,903,075 and divide it by 2:
25,903,075 ÷ 2 = 12,951,537.5
If the quotient is a whole number, then 2 and 12,951,537.5 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 | 25,903,075 | |
| -1 | -25,903,075 |
Now, we try dividing 25,903,075 by 3:
25,903,075 ÷ 3 = 8,634,358.3333
If the quotient is a whole number, then 3 and 8,634,358.3333 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 | 25,903,075 | |
| -1 | -25,903,075 |
Let's try dividing by 4:
25,903,075 ÷ 4 = 6,475,768.75
If the quotient is a whole number, then 4 and 6,475,768.75 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 | 25,903,075 | |
| -1 | 25,903,075 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 121 | 275 | 605 | 3,025 | 8,563 | 42,815 | 94,193 | 214,075 | 470,965 | 1,036,123 | 2,354,825 | 5,180,615 | 25,903,075 |
| -1 | -5 | -11 | -25 | -55 | -121 | -275 | -605 | -3,025 | -8,563 | -42,815 | -94,193 | -214,075 | -470,965 | -1,036,123 | -2,354,825 | -5,180,615 | -25,903,075 |
Here are some more numbers to try:
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