A:
Positive:
1 x 30874255 x 61748511 x 28067525 x 12349755 x 56135103 x 29975109 x 28325275 x 11227515 x 5995545 x 56651133 x 27251199 x 2575
Negative:
-1 x -3087425-5 x -617485-11 x -280675-25 x -123497-55 x -56135-103 x -29975-109 x -28325-275 x -11227-515 x -5995-545 x -5665-1133 x -2725-1199 x -2575
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 3,087,425, 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 | 3,087,425 | |
| -1 | -3,087,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,087,425.
Example:
1 x 3,087,425 = 3,087,425
and
-1 x -3,087,425 = 3,087,425
Notice both answers equal 3,087,425
With that explanation out of the way, let's continue. Next, we take the number 3,087,425 and divide it by 2:
3,087,425 ÷ 2 = 1,543,712.5
If the quotient is a whole number, then 2 and 1,543,712.5 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 | 3,087,425 | |
| -1 | -3,087,425 |
Now, we try dividing 3,087,425 by 3:
3,087,425 ÷ 3 = 1,029,141.6667
If the quotient is a whole number, then 3 and 1,029,141.6667 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 | 3,087,425 | |
| -1 | -3,087,425 |
Let's try dividing by 4:
3,087,425 ÷ 4 = 771,856.25
If the quotient is a whole number, then 4 and 771,856.25 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 | 3,087,425 | |
| -1 | 3,087,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 103 | 109 | 275 | 515 | 545 | 1,133 | 1,199 | 2,575 | 2,725 | 5,665 | 5,995 | 11,227 | 28,325 | 29,975 | 56,135 | 123,497 | 280,675 | 617,485 | 3,087,425 |
| -1 | -5 | -11 | -25 | -55 | -103 | -109 | -275 | -515 | -545 | -1,133 | -1,199 | -2,575 | -2,725 | -5,665 | -5,995 | -11,227 | -28,325 | -29,975 | -56,135 | -123,497 | -280,675 | -617,485 | -3,087,425 |
Here are some more numbers to try:
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