A:
Positive:
1 x 25130537311 x 2284594317 x 1478266943 x 5844311187 x 1343879473 x 531301731 x 3437838041 x 31253
Negative:
-1 x -251305373-11 x -22845943-17 x -14782669-43 x -5844311-187 x -1343879-473 x -531301-731 x -343783-8041 x -31253
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 251,305,373, 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 | 251,305,373 | |
| -1 | -251,305,373 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 251,305,373.
Example:
1 x 251,305,373 = 251,305,373
and
-1 x -251,305,373 = 251,305,373
Notice both answers equal 251,305,373
With that explanation out of the way, let's continue. Next, we take the number 251,305,373 and divide it by 2:
251,305,373 ÷ 2 = 125,652,686.5
If the quotient is a whole number, then 2 and 125,652,686.5 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 | 251,305,373 | |
| -1 | -251,305,373 |
Now, we try dividing 251,305,373 by 3:
251,305,373 ÷ 3 = 83,768,457.6667
If the quotient is a whole number, then 3 and 83,768,457.6667 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 | 251,305,373 | |
| -1 | -251,305,373 |
Let's try dividing by 4:
251,305,373 ÷ 4 = 62,826,343.25
If the quotient is a whole number, then 4 and 62,826,343.25 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 | 251,305,373 | |
| -1 | 251,305,373 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 43 | 187 | 473 | 731 | 8,041 | 31,253 | 343,783 | 531,301 | 1,343,879 | 5,844,311 | 14,782,669 | 22,845,943 | 251,305,373 |
| -1 | -11 | -17 | -43 | -187 | -473 | -731 | -8,041 | -31,253 | -343,783 | -531,301 | -1,343,879 | -5,844,311 | -14,782,669 | -22,845,943 | -251,305,373 |
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