A:
Positive:
1 x 231430155 x 46286037 x 330614529 x 79803535 x 661229145 x 159607151 x 153265203 x 114005755 x 306531015 x 228011057 x 218954379 x 5285
Negative:
-1 x -23143015-5 x -4628603-7 x -3306145-29 x -798035-35 x -661229-145 x -159607-151 x -153265-203 x -114005-755 x -30653-1015 x -22801-1057 x -21895-4379 x -5285
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 23,143,015, 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 | 23,143,015 | |
| -1 | -23,143,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,143,015.
Example:
1 x 23,143,015 = 23,143,015
and
-1 x -23,143,015 = 23,143,015
Notice both answers equal 23,143,015
With that explanation out of the way, let's continue. Next, we take the number 23,143,015 and divide it by 2:
23,143,015 ÷ 2 = 11,571,507.5
If the quotient is a whole number, then 2 and 11,571,507.5 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 | 23,143,015 | |
| -1 | -23,143,015 |
Now, we try dividing 23,143,015 by 3:
23,143,015 ÷ 3 = 7,714,338.3333
If the quotient is a whole number, then 3 and 7,714,338.3333 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 | 23,143,015 | |
| -1 | -23,143,015 |
Let's try dividing by 4:
23,143,015 ÷ 4 = 5,785,753.75
If the quotient is a whole number, then 4 and 5,785,753.75 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 | 23,143,015 | |
| -1 | 23,143,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 29 | 35 | 145 | 151 | 203 | 755 | 1,015 | 1,057 | 4,379 | 5,285 | 21,895 | 22,801 | 30,653 | 114,005 | 153,265 | 159,607 | 661,229 | 798,035 | 3,306,145 | 4,628,603 | 23,143,015 |
| -1 | -5 | -7 | -29 | -35 | -145 | -151 | -203 | -755 | -1,015 | -1,057 | -4,379 | -5,285 | -21,895 | -22,801 | -30,653 | -114,005 | -153,265 | -159,607 | -661,229 | -798,035 | -3,306,145 | -4,628,603 | -23,143,015 |
Here are some more numbers to try:
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