A:
Positive:
1 x 231432117 x 330617313 x 178024791 x 254321263 x 87997967 x 239331841 x 125713419 x 6769
Negative:
-1 x -23143211-7 x -3306173-13 x -1780247-91 x -254321-263 x -87997-967 x -23933-1841 x -12571-3419 x -6769
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 23,143,211, 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 | 23,143,211 | |
| -1 | -23,143,211 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,143,211.
Example:
1 x 23,143,211 = 23,143,211
and
-1 x -23,143,211 = 23,143,211
Notice both answers equal 23,143,211
With that explanation out of the way, let's continue. Next, we take the number 23,143,211 and divide it by 2:
23,143,211 ÷ 2 = 11,571,605.5
If the quotient is a whole number, then 2 and 11,571,605.5 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 | 23,143,211 | |
| -1 | -23,143,211 |
Now, we try dividing 23,143,211 by 3:
23,143,211 ÷ 3 = 7,714,403.6667
If the quotient is a whole number, then 3 and 7,714,403.6667 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 | 23,143,211 | |
| -1 | -23,143,211 |
Let's try dividing by 4:
23,143,211 ÷ 4 = 5,785,802.75
If the quotient is a whole number, then 4 and 5,785,802.75 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 | 23,143,211 | |
| -1 | 23,143,211 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 263 | 967 | 1,841 | 3,419 | 6,769 | 12,571 | 23,933 | 87,997 | 254,321 | 1,780,247 | 3,306,173 | 23,143,211 |
| -1 | -7 | -13 | -91 | -263 | -967 | -1,841 | -3,419 | -6,769 | -12,571 | -23,933 | -87,997 | -254,321 | -1,780,247 | -3,306,173 | -23,143,211 |
Here are some more numbers to try:
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