A:
Positive:
1 x 32400255 x 64800525 x 12960129 x 11172541 x 79025109 x 29725145 x 22345205 x 15805545 x 5945725 x 44691025 x 31611189 x 2725
Negative:
-1 x -3240025-5 x -648005-25 x -129601-29 x -111725-41 x -79025-109 x -29725-145 x -22345-205 x -15805-545 x -5945-725 x -4469-1025 x -3161-1189 x -2725
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 3,240,025, 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 | 3,240,025 | |
| -1 | -3,240,025 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,240,025.
Example:
1 x 3,240,025 = 3,240,025
and
-1 x -3,240,025 = 3,240,025
Notice both answers equal 3,240,025
With that explanation out of the way, let's continue. Next, we take the number 3,240,025 and divide it by 2:
3,240,025 ÷ 2 = 1,620,012.5
If the quotient is a whole number, then 2 and 1,620,012.5 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 | 3,240,025 | |
| -1 | -3,240,025 |
Now, we try dividing 3,240,025 by 3:
3,240,025 ÷ 3 = 1,080,008.3333
If the quotient is a whole number, then 3 and 1,080,008.3333 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 | 3,240,025 | |
| -1 | -3,240,025 |
Let's try dividing by 4:
3,240,025 ÷ 4 = 810,006.25
If the quotient is a whole number, then 4 and 810,006.25 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 | 3,240,025 | |
| -1 | 3,240,025 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 29 | 41 | 109 | 145 | 205 | 545 | 725 | 1,025 | 1,189 | 2,725 | 3,161 | 4,469 | 5,945 | 15,805 | 22,345 | 29,725 | 79,025 | 111,725 | 129,601 | 648,005 | 3,240,025 |
| -1 | -5 | -25 | -29 | -41 | -109 | -145 | -205 | -545 | -725 | -1,025 | -1,189 | -2,725 | -3,161 | -4,469 | -5,945 | -15,805 | -22,345 | -29,725 | -79,025 | -111,725 | -129,601 | -648,005 | -3,240,025 |
Here are some more numbers to try:
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