A:
Positive:
1 x 2503520655 x 50070413113 x 2215505223 x 1122655565 x 4431011115 x 2245311987 x 1259959935 x 25199
Negative:
-1 x -250352065-5 x -50070413-113 x -2215505-223 x -1122655-565 x -443101-1115 x -224531-1987 x -125995-9935 x -25199
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 250,352,065, 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 | 250,352,065 | |
| -1 | -250,352,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 250,352,065.
Example:
1 x 250,352,065 = 250,352,065
and
-1 x -250,352,065 = 250,352,065
Notice both answers equal 250,352,065
With that explanation out of the way, let's continue. Next, we take the number 250,352,065 and divide it by 2:
250,352,065 ÷ 2 = 125,176,032.5
If the quotient is a whole number, then 2 and 125,176,032.5 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 | 250,352,065 | |
| -1 | -250,352,065 |
Now, we try dividing 250,352,065 by 3:
250,352,065 ÷ 3 = 83,450,688.3333
If the quotient is a whole number, then 3 and 83,450,688.3333 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 | 250,352,065 | |
| -1 | -250,352,065 |
Let's try dividing by 4:
250,352,065 ÷ 4 = 62,588,016.25
If the quotient is a whole number, then 4 and 62,588,016.25 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 | 250,352,065 | |
| -1 | 250,352,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 113 | 223 | 565 | 1,115 | 1,987 | 9,935 | 25,199 | 125,995 | 224,531 | 443,101 | 1,122,655 | 2,215,505 | 50,070,413 | 250,352,065 |
| -1 | -5 | -113 | -223 | -565 | -1,115 | -1,987 | -9,935 | -25,199 | -125,995 | -224,531 | -443,101 | -1,122,655 | -2,215,505 | -50,070,413 | -250,352,065 |
Here are some more numbers to try:
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