A:
Positive:
1 x 112483917 x 160691311 x 102258141 x 27435149 x 22955977 x 146083287 x 39193451 x 24941509 x 22099539 x 208692009 x 55993157 x 3563
Negative:
-1 x -11248391-7 x -1606913-11 x -1022581-41 x -274351-49 x -229559-77 x -146083-287 x -39193-451 x -24941-509 x -22099-539 x -20869-2009 x -5599-3157 x -3563
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 11,248,391, 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 | 11,248,391 | |
| -1 | -11,248,391 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,248,391.
Example:
1 x 11,248,391 = 11,248,391
and
-1 x -11,248,391 = 11,248,391
Notice both answers equal 11,248,391
With that explanation out of the way, let's continue. Next, we take the number 11,248,391 and divide it by 2:
11,248,391 ÷ 2 = 5,624,195.5
If the quotient is a whole number, then 2 and 5,624,195.5 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 | 11,248,391 | |
| -1 | -11,248,391 |
Now, we try dividing 11,248,391 by 3:
11,248,391 ÷ 3 = 3,749,463.6667
If the quotient is a whole number, then 3 and 3,749,463.6667 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 | 11,248,391 | |
| -1 | -11,248,391 |
Let's try dividing by 4:
11,248,391 ÷ 4 = 2,812,097.75
If the quotient is a whole number, then 4 and 2,812,097.75 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 | 11,248,391 | |
| -1 | 11,248,391 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 41 | 49 | 77 | 287 | 451 | 509 | 539 | 2,009 | 3,157 | 3,563 | 5,599 | 20,869 | 22,099 | 24,941 | 39,193 | 146,083 | 229,559 | 274,351 | 1,022,581 | 1,606,913 | 11,248,391 |
| -1 | -7 | -11 | -41 | -49 | -77 | -287 | -451 | -509 | -539 | -2,009 | -3,157 | -3,563 | -5,599 | -20,869 | -22,099 | -24,941 | -39,193 | -146,083 | -229,559 | -274,351 | -1,022,581 | -1,606,913 | -11,248,391 |
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