A:
Positive:
1 x 232421455 x 464842917 x 136718543 x 54051585 x 273437215 x 108103731 x 317953655 x 6359
Negative:
-1 x -23242145-5 x -4648429-17 x -1367185-43 x -540515-85 x -273437-215 x -108103-731 x -31795-3655 x -6359
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 23,242,145, 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 | 23,242,145 | |
| -1 | -23,242,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,242,145.
Example:
1 x 23,242,145 = 23,242,145
and
-1 x -23,242,145 = 23,242,145
Notice both answers equal 23,242,145
With that explanation out of the way, let's continue. Next, we take the number 23,242,145 and divide it by 2:
23,242,145 ÷ 2 = 11,621,072.5
If the quotient is a whole number, then 2 and 11,621,072.5 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 | 23,242,145 | |
| -1 | -23,242,145 |
Now, we try dividing 23,242,145 by 3:
23,242,145 ÷ 3 = 7,747,381.6667
If the quotient is a whole number, then 3 and 7,747,381.6667 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 | 23,242,145 | |
| -1 | -23,242,145 |
Let's try dividing by 4:
23,242,145 ÷ 4 = 5,810,536.25
If the quotient is a whole number, then 4 and 5,810,536.25 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 | 23,242,145 | |
| -1 | 23,242,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 43 | 85 | 215 | 731 | 3,655 | 6,359 | 31,795 | 108,103 | 273,437 | 540,515 | 1,367,185 | 4,648,429 | 23,242,145 |
| -1 | -5 | -17 | -43 | -85 | -215 | -731 | -3,655 | -6,359 | -31,795 | -108,103 | -273,437 | -540,515 | -1,367,185 | -4,648,429 | -23,242,145 |
Here are some more numbers to try:
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