A:
Positive:
1 x 2500571717 x 3572245313 x 1923516783 x 301273791 x 2747881581 x 4303911079 x 2317497553 x 33107
Negative:
-1 x -250057171-7 x -35722453-13 x -19235167-83 x -3012737-91 x -2747881-581 x -430391-1079 x -231749-7553 x -33107
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 250,057,171, 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 | 250,057,171 | |
| -1 | -250,057,171 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 250,057,171.
Example:
1 x 250,057,171 = 250,057,171
and
-1 x -250,057,171 = 250,057,171
Notice both answers equal 250,057,171
With that explanation out of the way, let's continue. Next, we take the number 250,057,171 and divide it by 2:
250,057,171 ÷ 2 = 125,028,585.5
If the quotient is a whole number, then 2 and 125,028,585.5 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 | 250,057,171 | |
| -1 | -250,057,171 |
Now, we try dividing 250,057,171 by 3:
250,057,171 ÷ 3 = 83,352,390.3333
If the quotient is a whole number, then 3 and 83,352,390.3333 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 | 250,057,171 | |
| -1 | -250,057,171 |
Let's try dividing by 4:
250,057,171 ÷ 4 = 62,514,292.75
If the quotient is a whole number, then 4 and 62,514,292.75 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 | 250,057,171 | |
| -1 | 250,057,171 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 83 | 91 | 581 | 1,079 | 7,553 | 33,107 | 231,749 | 430,391 | 2,747,881 | 3,012,737 | 19,235,167 | 35,722,453 | 250,057,171 |
| -1 | -7 | -13 | -83 | -91 | -581 | -1,079 | -7,553 | -33,107 | -231,749 | -430,391 | -2,747,881 | -3,012,737 | -19,235,167 | -35,722,453 | -250,057,171 |
Here are some more numbers to try:
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