A:
Positive:
1 x 2503888455 x 500777697 x 3576983535 x 715396741 x 6107045205 x 1221409287 x 8724351435 x 174487
Negative:
-1 x -250388845-5 x -50077769-7 x -35769835-35 x -7153967-41 x -6107045-205 x -1221409-287 x -872435-1435 x -174487
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 250,388,845, 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 | 250,388,845 | |
| -1 | -250,388,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 250,388,845.
Example:
1 x 250,388,845 = 250,388,845
and
-1 x -250,388,845 = 250,388,845
Notice both answers equal 250,388,845
With that explanation out of the way, let's continue. Next, we take the number 250,388,845 and divide it by 2:
250,388,845 ÷ 2 = 125,194,422.5
If the quotient is a whole number, then 2 and 125,194,422.5 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 | 250,388,845 | |
| -1 | -250,388,845 |
Now, we try dividing 250,388,845 by 3:
250,388,845 ÷ 3 = 83,462,948.3333
If the quotient is a whole number, then 3 and 83,462,948.3333 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 | 250,388,845 | |
| -1 | -250,388,845 |
Let's try dividing by 4:
250,388,845 ÷ 4 = 62,597,211.25
If the quotient is a whole number, then 4 and 62,597,211.25 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 | 250,388,845 | |
| -1 | 250,388,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 174,487 | 872,435 | 1,221,409 | 6,107,045 | 7,153,967 | 35,769,835 | 50,077,769 | 250,388,845 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -174,487 | -872,435 | -1,221,409 | -6,107,045 | -7,153,967 | -35,769,835 | -50,077,769 | -250,388,845 |
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