A:
Positive:
1 x 25007155 x 5001437 x 35724535 x 7144949 x 5103559 x 42385173 x 14455245 x 10207295 x 8477413 x 6055865 x 28911211 x 2065
Negative:
-1 x -2500715-5 x -500143-7 x -357245-35 x -71449-49 x -51035-59 x -42385-173 x -14455-245 x -10207-295 x -8477-413 x -6055-865 x -2891-1211 x -2065
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 2,500,715, 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 | 2,500,715 | |
| -1 | -2,500,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,500,715.
Example:
1 x 2,500,715 = 2,500,715
and
-1 x -2,500,715 = 2,500,715
Notice both answers equal 2,500,715
With that explanation out of the way, let's continue. Next, we take the number 2,500,715 and divide it by 2:
2,500,715 ÷ 2 = 1,250,357.5
If the quotient is a whole number, then 2 and 1,250,357.5 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 | 2,500,715 | |
| -1 | -2,500,715 |
Now, we try dividing 2,500,715 by 3:
2,500,715 ÷ 3 = 833,571.6667
If the quotient is a whole number, then 3 and 833,571.6667 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 | 2,500,715 | |
| -1 | -2,500,715 |
Let's try dividing by 4:
2,500,715 ÷ 4 = 625,178.75
If the quotient is a whole number, then 4 and 625,178.75 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 | 2,500,715 | |
| -1 | 2,500,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 59 | 173 | 245 | 295 | 413 | 865 | 1,211 | 2,065 | 2,891 | 6,055 | 8,477 | 10,207 | 14,455 | 42,385 | 51,035 | 71,449 | 357,245 | 500,143 | 2,500,715 |
| -1 | -5 | -7 | -35 | -49 | -59 | -173 | -245 | -295 | -413 | -865 | -1,211 | -2,065 | -2,891 | -6,055 | -8,477 | -10,207 | -14,455 | -42,385 | -51,035 | -71,449 | -357,245 | -500,143 | -2,500,715 |
Here are some more numbers to try:
Try the factor calculator