A:
Positive:
1 x 111730855 x 22346177 x 159615511 x 101573535 x 31923155 x 20314777 x 145105385 x 29021
Negative:
-1 x -11173085-5 x -2234617-7 x -1596155-11 x -1015735-35 x -319231-55 x -203147-77 x -145105-385 x -29021
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 11,173,085, 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 | 11,173,085 | |
| -1 | -11,173,085 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 11,173,085.
Example:
1 x 11,173,085 = 11,173,085
and
-1 x -11,173,085 = 11,173,085
Notice both answers equal 11,173,085
With that explanation out of the way, let's continue. Next, we take the number 11,173,085 and divide it by 2:
11,173,085 ÷ 2 = 5,586,542.5
If the quotient is a whole number, then 2 and 5,586,542.5 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 | 11,173,085 | |
| -1 | -11,173,085 |
Now, we try dividing 11,173,085 by 3:
11,173,085 ÷ 3 = 3,724,361.6667
If the quotient is a whole number, then 3 and 3,724,361.6667 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 | 11,173,085 | |
| -1 | -11,173,085 |
Let's try dividing by 4:
11,173,085 ÷ 4 = 2,793,271.25
If the quotient is a whole number, then 4 and 2,793,271.25 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 | 11,173,085 | |
| -1 | 11,173,085 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 29,021 | 145,105 | 203,147 | 319,231 | 1,015,735 | 1,596,155 | 2,234,617 | 11,173,085 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -29,021 | -145,105 | -203,147 | -319,231 | -1,015,735 | -1,596,155 | -2,234,617 | -11,173,085 |
Here are some more numbers to try:
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