A:
Positive:
1 x 1250002455 x 2500004937 x 3378385185 x 675677709 x 176305953 x 1311653545 x 352614765 x 26233
Negative:
-1 x -125000245-5 x -25000049-37 x -3378385-185 x -675677-709 x -176305-953 x -131165-3545 x -35261-4765 x -26233
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 125,000,245, 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 | 125,000,245 | |
| -1 | -125,000,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,000,245.
Example:
1 x 125,000,245 = 125,000,245
and
-1 x -125,000,245 = 125,000,245
Notice both answers equal 125,000,245
With that explanation out of the way, let's continue. Next, we take the number 125,000,245 and divide it by 2:
125,000,245 ÷ 2 = 62,500,122.5
If the quotient is a whole number, then 2 and 62,500,122.5 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 | 125,000,245 | |
| -1 | -125,000,245 |
Now, we try dividing 125,000,245 by 3:
125,000,245 ÷ 3 = 41,666,748.3333
If the quotient is a whole number, then 3 and 41,666,748.3333 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 | 125,000,245 | |
| -1 | -125,000,245 |
Let's try dividing by 4:
125,000,245 ÷ 4 = 31,250,061.25
If the quotient is a whole number, then 4 and 31,250,061.25 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 | 125,000,245 | |
| -1 | 125,000,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 709 | 953 | 3,545 | 4,765 | 26,233 | 35,261 | 131,165 | 176,305 | 675,677 | 3,378,385 | 25,000,049 | 125,000,245 |
| -1 | -5 | -37 | -185 | -709 | -953 | -3,545 | -4,765 | -26,233 | -35,261 | -131,165 | -176,305 | -675,677 | -3,378,385 | -25,000,049 | -125,000,245 |
Here are some more numbers to try:
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