A:
Positive:
1 x 2508451255 x 5016902519 x 1320237525 x 1003380595 x 2640475125 x 2006761475 x 5280952375 x 105619
Negative:
-1 x -250845125-5 x -50169025-19 x -13202375-25 x -10033805-95 x -2640475-125 x -2006761-475 x -528095-2375 x -105619
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 250,845,125, 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 | 250,845,125 | |
| -1 | -250,845,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 250,845,125.
Example:
1 x 250,845,125 = 250,845,125
and
-1 x -250,845,125 = 250,845,125
Notice both answers equal 250,845,125
With that explanation out of the way, let's continue. Next, we take the number 250,845,125 and divide it by 2:
250,845,125 ÷ 2 = 125,422,562.5
If the quotient is a whole number, then 2 and 125,422,562.5 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 | 250,845,125 | |
| -1 | -250,845,125 |
Now, we try dividing 250,845,125 by 3:
250,845,125 ÷ 3 = 83,615,041.6667
If the quotient is a whole number, then 3 and 83,615,041.6667 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 | 250,845,125 | |
| -1 | -250,845,125 |
Let's try dividing by 4:
250,845,125 ÷ 4 = 62,711,281.25
If the quotient is a whole number, then 4 and 62,711,281.25 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 | 250,845,125 | |
| -1 | 250,845,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 125 | 475 | 2,375 | 105,619 | 528,095 | 2,006,761 | 2,640,475 | 10,033,805 | 13,202,375 | 50,169,025 | 250,845,125 |
| -1 | -5 | -19 | -25 | -95 | -125 | -475 | -2,375 | -105,619 | -528,095 | -2,006,761 | -2,640,475 | -10,033,805 | -13,202,375 | -50,169,025 | -250,845,125 |
Here are some more numbers to try:
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