A:
Positive:
1 x 25000437 x 35714913 x 19231183 x 3012191 x 27473331 x 7553581 x 43031079 x 2317
Negative:
-1 x -2500043-7 x -357149-13 x -192311-83 x -30121-91 x -27473-331 x -7553-581 x -4303-1079 x -2317
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 2,500,043, 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 | 2,500,043 | |
| -1 | -2,500,043 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,500,043.
Example:
1 x 2,500,043 = 2,500,043
and
-1 x -2,500,043 = 2,500,043
Notice both answers equal 2,500,043
With that explanation out of the way, let's continue. Next, we take the number 2,500,043 and divide it by 2:
2,500,043 ÷ 2 = 1,250,021.5
If the quotient is a whole number, then 2 and 1,250,021.5 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 | 2,500,043 | |
| -1 | -2,500,043 |
Now, we try dividing 2,500,043 by 3:
2,500,043 ÷ 3 = 833,347.6667
If the quotient is a whole number, then 3 and 833,347.6667 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 | 2,500,043 | |
| -1 | -2,500,043 |
Let's try dividing by 4:
2,500,043 ÷ 4 = 625,010.75
If the quotient is a whole number, then 4 and 625,010.75 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 | 2,500,043 | |
| -1 | 2,500,043 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 83 | 91 | 331 | 581 | 1,079 | 2,317 | 4,303 | 7,553 | 27,473 | 30,121 | 192,311 | 357,149 | 2,500,043 |
| -1 | -7 | -13 | -83 | -91 | -331 | -581 | -1,079 | -2,317 | -4,303 | -7,553 | -27,473 | -30,121 | -192,311 | -357,149 | -2,500,043 |
Here are some more numbers to try:
Try the factor calculator