A:
Positive:
1 x 513178913 x 39475337 x 13869747 x 109187227 x 22607481 x 10669611 x 83991739 x 2951
Negative:
-1 x -5131789-13 x -394753-37 x -138697-47 x -109187-227 x -22607-481 x -10669-611 x -8399-1739 x -2951
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 5,131,789, 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 | 5,131,789 | |
| -1 | -5,131,789 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,131,789.
Example:
1 x 5,131,789 = 5,131,789
and
-1 x -5,131,789 = 5,131,789
Notice both answers equal 5,131,789
With that explanation out of the way, let's continue. Next, we take the number 5,131,789 and divide it by 2:
5,131,789 ÷ 2 = 2,565,894.5
If the quotient is a whole number, then 2 and 2,565,894.5 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 | 5,131,789 | |
| -1 | -5,131,789 |
Now, we try dividing 5,131,789 by 3:
5,131,789 ÷ 3 = 1,710,596.3333
If the quotient is a whole number, then 3 and 1,710,596.3333 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 | 5,131,789 | |
| -1 | -5,131,789 |
Let's try dividing by 4:
5,131,789 ÷ 4 = 1,282,947.25
If the quotient is a whole number, then 4 and 1,282,947.25 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 | 5,131,789 | |
| -1 | 5,131,789 |
If you did it right, you will end up with this table:
| 1 | 13 | 37 | 47 | 227 | 481 | 611 | 1,739 | 2,951 | 8,399 | 10,669 | 22,607 | 109,187 | 138,697 | 394,753 | 5,131,789 |
| -1 | -13 | -37 | -47 | -227 | -481 | -611 | -1,739 | -2,951 | -8,399 | -10,669 | -22,607 | -109,187 | -138,697 | -394,753 | -5,131,789 |
Here are some more numbers to try:
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