A:
Positive:
1 x 12507261737 x 338034183 x 1506899139 x 899803293 x 4268693071 x 407275143 x 2431910841 x 11537
Negative:
-1 x -125072617-37 x -3380341-83 x -1506899-139 x -899803-293 x -426869-3071 x -40727-5143 x -24319-10841 x -11537
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 125,072,617, 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 | 125,072,617 | |
| -1 | -125,072,617 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,072,617.
Example:
1 x 125,072,617 = 125,072,617
and
-1 x -125,072,617 = 125,072,617
Notice both answers equal 125,072,617
With that explanation out of the way, let's continue. Next, we take the number 125,072,617 and divide it by 2:
125,072,617 ÷ 2 = 62,536,308.5
If the quotient is a whole number, then 2 and 62,536,308.5 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 | 125,072,617 | |
| -1 | -125,072,617 |
Now, we try dividing 125,072,617 by 3:
125,072,617 ÷ 3 = 41,690,872.3333
If the quotient is a whole number, then 3 and 41,690,872.3333 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 | 125,072,617 | |
| -1 | -125,072,617 |
Let's try dividing by 4:
125,072,617 ÷ 4 = 31,268,154.25
If the quotient is a whole number, then 4 and 31,268,154.25 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 | 125,072,617 | |
| -1 | 125,072,617 |
If you did it right, you will end up with this table:
| 1 | 37 | 83 | 139 | 293 | 3,071 | 5,143 | 10,841 | 11,537 | 24,319 | 40,727 | 426,869 | 899,803 | 1,506,899 | 3,380,341 | 125,072,617 |
| -1 | -37 | -83 | -139 | -293 | -3,071 | -5,143 | -10,841 | -11,537 | -24,319 | -40,727 | -426,869 | -899,803 | -1,506,899 | -3,380,341 | -125,072,617 |
Here are some more numbers to try:
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