A:
Positive:
1 x 13524325111 x 1229484113 x 1040332737 x 3655223143 x 945757407 x 332293481 x 2811715291 x 25561
Negative:
-1 x -135243251-11 x -12294841-13 x -10403327-37 x -3655223-143 x -945757-407 x -332293-481 x -281171-5291 x -25561
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 135,243,251, 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 | 135,243,251 | |
| -1 | -135,243,251 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 135,243,251.
Example:
1 x 135,243,251 = 135,243,251
and
-1 x -135,243,251 = 135,243,251
Notice both answers equal 135,243,251
With that explanation out of the way, let's continue. Next, we take the number 135,243,251 and divide it by 2:
135,243,251 ÷ 2 = 67,621,625.5
If the quotient is a whole number, then 2 and 67,621,625.5 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 | 135,243,251 | |
| -1 | -135,243,251 |
Now, we try dividing 135,243,251 by 3:
135,243,251 ÷ 3 = 45,081,083.6667
If the quotient is a whole number, then 3 and 45,081,083.6667 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 | 135,243,251 | |
| -1 | -135,243,251 |
Let's try dividing by 4:
135,243,251 ÷ 4 = 33,810,812.75
If the quotient is a whole number, then 4 and 33,810,812.75 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 | 135,243,251 | |
| -1 | 135,243,251 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 37 | 143 | 407 | 481 | 5,291 | 25,561 | 281,171 | 332,293 | 945,757 | 3,655,223 | 10,403,327 | 12,294,841 | 135,243,251 |
| -1 | -11 | -13 | -37 | -143 | -407 | -481 | -5,291 | -25,561 | -281,171 | -332,293 | -945,757 | -3,655,223 | -10,403,327 | -12,294,841 | -135,243,251 |
Here are some more numbers to try:
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