A:
Positive:
1 x 2501564177 x 3573663149 x 5105233109 x 2295013343 x 729319763 x 3278595341 x 468376691 x 37387
Negative:
-1 x -250156417-7 x -35736631-49 x -5105233-109 x -2295013-343 x -729319-763 x -327859-5341 x -46837-6691 x -37387
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 250,156,417, 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 | 250,156,417 | |
| -1 | -250,156,417 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 250,156,417.
Example:
1 x 250,156,417 = 250,156,417
and
-1 x -250,156,417 = 250,156,417
Notice both answers equal 250,156,417
With that explanation out of the way, let's continue. Next, we take the number 250,156,417 and divide it by 2:
250,156,417 ÷ 2 = 125,078,208.5
If the quotient is a whole number, then 2 and 125,078,208.5 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 | 250,156,417 | |
| -1 | -250,156,417 |
Now, we try dividing 250,156,417 by 3:
250,156,417 ÷ 3 = 83,385,472.3333
If the quotient is a whole number, then 3 and 83,385,472.3333 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 | 250,156,417 | |
| -1 | -250,156,417 |
Let's try dividing by 4:
250,156,417 ÷ 4 = 62,539,104.25
If the quotient is a whole number, then 4 and 62,539,104.25 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 | 250,156,417 | |
| -1 | 250,156,417 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 109 | 343 | 763 | 5,341 | 6,691 | 37,387 | 46,837 | 327,859 | 729,319 | 2,295,013 | 5,105,233 | 35,736,631 | 250,156,417 |
| -1 | -7 | -49 | -109 | -343 | -763 | -5,341 | -6,691 | -37,387 | -46,837 | -327,859 | -729,319 | -2,295,013 | -5,105,233 | -35,736,631 | -250,156,417 |
Here are some more numbers to try:
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