A:
Positive:
1 x 231916555 x 463833117 x 136421585 x 272843233 x 995351165 x 199071171 x 198053961 x 5855
Negative:
-1 x -23191655-5 x -4638331-17 x -1364215-85 x -272843-233 x -99535-1165 x -19907-1171 x -19805-3961 x -5855
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 23,191,655, 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 | 23,191,655 | |
| -1 | -23,191,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,191,655.
Example:
1 x 23,191,655 = 23,191,655
and
-1 x -23,191,655 = 23,191,655
Notice both answers equal 23,191,655
With that explanation out of the way, let's continue. Next, we take the number 23,191,655 and divide it by 2:
23,191,655 ÷ 2 = 11,595,827.5
If the quotient is a whole number, then 2 and 11,595,827.5 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 | 23,191,655 | |
| -1 | -23,191,655 |
Now, we try dividing 23,191,655 by 3:
23,191,655 ÷ 3 = 7,730,551.6667
If the quotient is a whole number, then 3 and 7,730,551.6667 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 | 23,191,655 | |
| -1 | -23,191,655 |
Let's try dividing by 4:
23,191,655 ÷ 4 = 5,797,913.75
If the quotient is a whole number, then 4 and 5,797,913.75 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 | 23,191,655 | |
| -1 | 23,191,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 233 | 1,165 | 1,171 | 3,961 | 5,855 | 19,805 | 19,907 | 99,535 | 272,843 | 1,364,215 | 4,638,331 | 23,191,655 |
| -1 | -5 | -17 | -85 | -233 | -1,165 | -1,171 | -3,961 | -5,855 | -19,805 | -19,907 | -99,535 | -272,843 | -1,364,215 | -4,638,331 | -23,191,655 |
Here are some more numbers to try:
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