A:
Positive:
1 x 2380566111 x 216415117 x 140033371 x 335291121 x 196741163 x 146047187 x 127303781 x 304811207 x 197231793 x 132772057 x 115732771 x 8591
Negative:
-1 x -23805661-11 x -2164151-17 x -1400333-71 x -335291-121 x -196741-163 x -146047-187 x -127303-781 x -30481-1207 x -19723-1793 x -13277-2057 x -11573-2771 x -8591
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 23,805,661, 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 | 23,805,661 | |
| -1 | -23,805,661 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,805,661.
Example:
1 x 23,805,661 = 23,805,661
and
-1 x -23,805,661 = 23,805,661
Notice both answers equal 23,805,661
With that explanation out of the way, let's continue. Next, we take the number 23,805,661 and divide it by 2:
23,805,661 ÷ 2 = 11,902,830.5
If the quotient is a whole number, then 2 and 11,902,830.5 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 | 23,805,661 | |
| -1 | -23,805,661 |
Now, we try dividing 23,805,661 by 3:
23,805,661 ÷ 3 = 7,935,220.3333
If the quotient is a whole number, then 3 and 7,935,220.3333 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 | 23,805,661 | |
| -1 | -23,805,661 |
Let's try dividing by 4:
23,805,661 ÷ 4 = 5,951,415.25
If the quotient is a whole number, then 4 and 5,951,415.25 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 | 23,805,661 | |
| -1 | 23,805,661 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 71 | 121 | 163 | 187 | 781 | 1,207 | 1,793 | 2,057 | 2,771 | 8,591 | 11,573 | 13,277 | 19,723 | 30,481 | 127,303 | 146,047 | 196,741 | 335,291 | 1,400,333 | 2,164,151 | 23,805,661 |
| -1 | -11 | -17 | -71 | -121 | -163 | -187 | -781 | -1,207 | -1,793 | -2,057 | -2,771 | -8,591 | -11,573 | -13,277 | -19,723 | -30,481 | -127,303 | -146,047 | -196,741 | -335,291 | -1,400,333 | -2,164,151 | -23,805,661 |
Here are some more numbers to try:
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