A:
Positive:
1 x 20424255 x 4084857 x 29177511 x 18567525 x 8169735 x 5835555 x 3713577 x 26525175 x 11671275 x 7427385 x 53051061 x 1925
Negative:
-1 x -2042425-5 x -408485-7 x -291775-11 x -185675-25 x -81697-35 x -58355-55 x -37135-77 x -26525-175 x -11671-275 x -7427-385 x -5305-1061 x -1925
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 2,042,425, 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 | 2,042,425 | |
| -1 | -2,042,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,042,425.
Example:
1 x 2,042,425 = 2,042,425
and
-1 x -2,042,425 = 2,042,425
Notice both answers equal 2,042,425
With that explanation out of the way, let's continue. Next, we take the number 2,042,425 and divide it by 2:
2,042,425 ÷ 2 = 1,021,212.5
If the quotient is a whole number, then 2 and 1,021,212.5 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 | 2,042,425 | |
| -1 | -2,042,425 |
Now, we try dividing 2,042,425 by 3:
2,042,425 ÷ 3 = 680,808.3333
If the quotient is a whole number, then 3 and 680,808.3333 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 | 2,042,425 | |
| -1 | -2,042,425 |
Let's try dividing by 4:
2,042,425 ÷ 4 = 510,606.25
If the quotient is a whole number, then 4 and 510,606.25 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 | 2,042,425 | |
| -1 | 2,042,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 25 | 35 | 55 | 77 | 175 | 275 | 385 | 1,061 | 1,925 | 5,305 | 7,427 | 11,671 | 26,525 | 37,135 | 58,355 | 81,697 | 185,675 | 291,775 | 408,485 | 2,042,425 |
| -1 | -5 | -7 | -11 | -25 | -35 | -55 | -77 | -175 | -275 | -385 | -1,061 | -1,925 | -5,305 | -7,427 | -11,671 | -26,525 | -37,135 | -58,355 | -81,697 | -185,675 | -291,775 | -408,485 | -2,042,425 |
Here are some more numbers to try:
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