A:
Positive:
1 x 13126257111 x 11932961107 x 1226753229 x 573199487 x 2695331177 x 1115232519 x 521095357 x 24503
Negative:
-1 x -131262571-11 x -11932961-107 x -1226753-229 x -573199-487 x -269533-1177 x -111523-2519 x -52109-5357 x -24503
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 131,262,571, 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 | 131,262,571 | |
| -1 | -131,262,571 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,262,571.
Example:
1 x 131,262,571 = 131,262,571
and
-1 x -131,262,571 = 131,262,571
Notice both answers equal 131,262,571
With that explanation out of the way, let's continue. Next, we take the number 131,262,571 and divide it by 2:
131,262,571 ÷ 2 = 65,631,285.5
If the quotient is a whole number, then 2 and 65,631,285.5 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 | 131,262,571 | |
| -1 | -131,262,571 |
Now, we try dividing 131,262,571 by 3:
131,262,571 ÷ 3 = 43,754,190.3333
If the quotient is a whole number, then 3 and 43,754,190.3333 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 | 131,262,571 | |
| -1 | -131,262,571 |
Let's try dividing by 4:
131,262,571 ÷ 4 = 32,815,642.75
If the quotient is a whole number, then 4 and 32,815,642.75 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 | 131,262,571 | |
| -1 | 131,262,571 |
If you did it right, you will end up with this table:
| 1 | 11 | 107 | 229 | 487 | 1,177 | 2,519 | 5,357 | 24,503 | 52,109 | 111,523 | 269,533 | 573,199 | 1,226,753 | 11,932,961 | 131,262,571 |
| -1 | -11 | -107 | -229 | -487 | -1,177 | -2,519 | -5,357 | -24,503 | -52,109 | -111,523 | -269,533 | -573,199 | -1,226,753 | -11,932,961 | -131,262,571 |
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