A:
Positive:
1 x 505189113 x 38860719 x 265889113 x 44707181 x 27911247 x 204531469 x 34392147 x 2353
Negative:
-1 x -5051891-13 x -388607-19 x -265889-113 x -44707-181 x -27911-247 x -20453-1469 x -3439-2147 x -2353
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 5,051,891, 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 | 5,051,891 | |
| -1 | -5,051,891 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 5,051,891.
Example:
1 x 5,051,891 = 5,051,891
and
-1 x -5,051,891 = 5,051,891
Notice both answers equal 5,051,891
With that explanation out of the way, let's continue. Next, we take the number 5,051,891 and divide it by 2:
5,051,891 ÷ 2 = 2,525,945.5
If the quotient is a whole number, then 2 and 2,525,945.5 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 | 5,051,891 | |
| -1 | -5,051,891 |
Now, we try dividing 5,051,891 by 3:
5,051,891 ÷ 3 = 1,683,963.6667
If the quotient is a whole number, then 3 and 1,683,963.6667 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 | 5,051,891 | |
| -1 | -5,051,891 |
Let's try dividing by 4:
5,051,891 ÷ 4 = 1,262,972.75
If the quotient is a whole number, then 4 and 1,262,972.75 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 | 5,051,891 | |
| -1 | 5,051,891 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 113 | 181 | 247 | 1,469 | 2,147 | 2,353 | 3,439 | 20,453 | 27,911 | 44,707 | 265,889 | 388,607 | 5,051,891 |
| -1 | -13 | -19 | -113 | -181 | -247 | -1,469 | -2,147 | -2,353 | -3,439 | -20,453 | -27,911 | -44,707 | -265,889 | -388,607 | -5,051,891 |
Here are some more numbers to try:
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