A:
Positive:
1 x 20017255 x 40034511 x 18197525 x 8006929 x 6902555 x 36395145 x 13805251 x 7975275 x 7279319 x 6275725 x 27611255 x 1595
Negative:
-1 x -2001725-5 x -400345-11 x -181975-25 x -80069-29 x -69025-55 x -36395-145 x -13805-251 x -7975-275 x -7279-319 x -6275-725 x -2761-1255 x -1595
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 2,001,725, 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 | 2,001,725 | |
| -1 | -2,001,725 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,001,725.
Example:
1 x 2,001,725 = 2,001,725
and
-1 x -2,001,725 = 2,001,725
Notice both answers equal 2,001,725
With that explanation out of the way, let's continue. Next, we take the number 2,001,725 and divide it by 2:
2,001,725 ÷ 2 = 1,000,862.5
If the quotient is a whole number, then 2 and 1,000,862.5 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 | 2,001,725 | |
| -1 | -2,001,725 |
Now, we try dividing 2,001,725 by 3:
2,001,725 ÷ 3 = 667,241.6667
If the quotient is a whole number, then 3 and 667,241.6667 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 | 2,001,725 | |
| -1 | -2,001,725 |
Let's try dividing by 4:
2,001,725 ÷ 4 = 500,431.25
If the quotient is a whole number, then 4 and 500,431.25 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 | 2,001,725 | |
| -1 | 2,001,725 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 29 | 55 | 145 | 251 | 275 | 319 | 725 | 1,255 | 1,595 | 2,761 | 6,275 | 7,279 | 7,975 | 13,805 | 36,395 | 69,025 | 80,069 | 181,975 | 400,345 | 2,001,725 |
| -1 | -5 | -11 | -25 | -29 | -55 | -145 | -251 | -275 | -319 | -725 | -1,255 | -1,595 | -2,761 | -6,275 | -7,279 | -7,975 | -13,805 | -36,395 | -69,025 | -80,069 | -181,975 | -400,345 | -2,001,725 |
Here are some more numbers to try:
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