A:
Positive:
1 x 12507255 x 2501457 x 17867525 x 5002935 x 3573549 x 25525175 x 7147245 x 51051021 x 1225
Negative:
-1 x -1250725-5 x -250145-7 x -178675-25 x -50029-35 x -35735-49 x -25525-175 x -7147-245 x -5105-1021 x -1225
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 1,250,725, 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 | 1,250,725 | |
| -1 | -1,250,725 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,250,725.
Example:
1 x 1,250,725 = 1,250,725
and
-1 x -1,250,725 = 1,250,725
Notice both answers equal 1,250,725
With that explanation out of the way, let's continue. Next, we take the number 1,250,725 and divide it by 2:
1,250,725 ÷ 2 = 625,362.5
If the quotient is a whole number, then 2 and 625,362.5 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 | 1,250,725 | |
| -1 | -1,250,725 |
Now, we try dividing 1,250,725 by 3:
1,250,725 ÷ 3 = 416,908.3333
If the quotient is a whole number, then 3 and 416,908.3333 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 | 1,250,725 | |
| -1 | -1,250,725 |
Let's try dividing by 4:
1,250,725 ÷ 4 = 312,681.25
If the quotient is a whole number, then 4 and 312,681.25 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 | 1,250,725 | |
| -1 | 1,250,725 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 25 | 35 | 49 | 175 | 245 | 1,021 | 1,225 | 5,105 | 7,147 | 25,525 | 35,735 | 50,029 | 178,675 | 250,145 | 1,250,725 |
| -1 | -5 | -7 | -25 | -35 | -49 | -175 | -245 | -1,021 | -1,225 | -5,105 | -7,147 | -25,525 | -35,735 | -50,029 | -178,675 | -250,145 | -1,250,725 |
Here are some more numbers to try:
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