A:
Positive:
1 x 507500217 x 725000367 x 757463241 x 210581449 x 113029469 x 1082091687 x 300833143 x 16147
Negative:
-1 x -50750021-7 x -7250003-67 x -757463-241 x -210581-449 x -113029-469 x -108209-1687 x -30083-3143 x -16147
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 50,750,021, 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 | 50,750,021 | |
| -1 | -50,750,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 50,750,021.
Example:
1 x 50,750,021 = 50,750,021
and
-1 x -50,750,021 = 50,750,021
Notice both answers equal 50,750,021
With that explanation out of the way, let's continue. Next, we take the number 50,750,021 and divide it by 2:
50,750,021 ÷ 2 = 25,375,010.5
If the quotient is a whole number, then 2 and 25,375,010.5 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 | 50,750,021 | |
| -1 | -50,750,021 |
Now, we try dividing 50,750,021 by 3:
50,750,021 ÷ 3 = 16,916,673.6667
If the quotient is a whole number, then 3 and 16,916,673.6667 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 | 50,750,021 | |
| -1 | -50,750,021 |
Let's try dividing by 4:
50,750,021 ÷ 4 = 12,687,505.25
If the quotient is a whole number, then 4 and 12,687,505.25 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 | 50,750,021 | |
| -1 | 50,750,021 |
If you did it right, you will end up with this table:
| 1 | 7 | 67 | 241 | 449 | 469 | 1,687 | 3,143 | 16,147 | 30,083 | 108,209 | 113,029 | 210,581 | 757,463 | 7,250,003 | 50,750,021 |
| -1 | -7 | -67 | -241 | -449 | -469 | -1,687 | -3,143 | -16,147 | -30,083 | -108,209 | -113,029 | -210,581 | -757,463 | -7,250,003 | -50,750,021 |
Here are some more numbers to try:
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