A:
Positive:
1 x 118814155 x 23762837 x 169734513 x 91395535 x 33946965 x 18279191 x 130565455 x 26113
Negative:
-1 x -11881415-5 x -2376283-7 x -1697345-13 x -913955-35 x -339469-65 x -182791-91 x -130565-455 x -26113
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 11,881,415, 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 | 11,881,415 | |
| -1 | -11,881,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,881,415.
Example:
1 x 11,881,415 = 11,881,415
and
-1 x -11,881,415 = 11,881,415
Notice both answers equal 11,881,415
With that explanation out of the way, let's continue. Next, we take the number 11,881,415 and divide it by 2:
11,881,415 ÷ 2 = 5,940,707.5
If the quotient is a whole number, then 2 and 5,940,707.5 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 | 11,881,415 | |
| -1 | -11,881,415 |
Now, we try dividing 11,881,415 by 3:
11,881,415 ÷ 3 = 3,960,471.6667
If the quotient is a whole number, then 3 and 3,960,471.6667 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 | 11,881,415 | |
| -1 | -11,881,415 |
Let's try dividing by 4:
11,881,415 ÷ 4 = 2,970,353.75
If the quotient is a whole number, then 4 and 2,970,353.75 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 | 11,881,415 | |
| -1 | 11,881,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 13 | 35 | 65 | 91 | 455 | 26,113 | 130,565 | 182,791 | 339,469 | 913,955 | 1,697,345 | 2,376,283 | 11,881,415 |
| -1 | -5 | -7 | -13 | -35 | -65 | -91 | -455 | -26,113 | -130,565 | -182,791 | -339,469 | -913,955 | -1,697,345 | -2,376,283 | -11,881,415 |
Here are some more numbers to try:
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