A:
Positive:
1 x 501204137 x 716005943 x 116559173 x 686581301 x 166513511 x 980832281 x 219733139 x 15967
Negative:
-1 x -50120413-7 x -7160059-43 x -1165591-73 x -686581-301 x -166513-511 x -98083-2281 x -21973-3139 x -15967
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 50,120,413, 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 | 50,120,413 | |
| -1 | -50,120,413 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 50,120,413.
Example:
1 x 50,120,413 = 50,120,413
and
-1 x -50,120,413 = 50,120,413
Notice both answers equal 50,120,413
With that explanation out of the way, let's continue. Next, we take the number 50,120,413 and divide it by 2:
50,120,413 ÷ 2 = 25,060,206.5
If the quotient is a whole number, then 2 and 25,060,206.5 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 | 50,120,413 | |
| -1 | -50,120,413 |
Now, we try dividing 50,120,413 by 3:
50,120,413 ÷ 3 = 16,706,804.3333
If the quotient is a whole number, then 3 and 16,706,804.3333 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 | 50,120,413 | |
| -1 | -50,120,413 |
Let's try dividing by 4:
50,120,413 ÷ 4 = 12,530,103.25
If the quotient is a whole number, then 4 and 12,530,103.25 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 | 50,120,413 | |
| -1 | 50,120,413 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 73 | 301 | 511 | 2,281 | 3,139 | 15,967 | 21,973 | 98,083 | 166,513 | 686,581 | 1,165,591 | 7,160,059 | 50,120,413 |
| -1 | -7 | -43 | -73 | -301 | -511 | -2,281 | -3,139 | -15,967 | -21,973 | -98,083 | -166,513 | -686,581 | -1,165,591 | -7,160,059 | -50,120,413 |
Here are some more numbers to try:
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