A:
Positive:
1 x 1314224155 x 26284483139 x 945485263 x 499705695 x 189097719 x 1827851315 x 999413595 x 36557
Negative:
-1 x -131422415-5 x -26284483-139 x -945485-263 x -499705-695 x -189097-719 x -182785-1315 x -99941-3595 x -36557
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 131,422,415, 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 | 131,422,415 | |
| -1 | -131,422,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,422,415.
Example:
1 x 131,422,415 = 131,422,415
and
-1 x -131,422,415 = 131,422,415
Notice both answers equal 131,422,415
With that explanation out of the way, let's continue. Next, we take the number 131,422,415 and divide it by 2:
131,422,415 ÷ 2 = 65,711,207.5
If the quotient is a whole number, then 2 and 65,711,207.5 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 | 131,422,415 | |
| -1 | -131,422,415 |
Now, we try dividing 131,422,415 by 3:
131,422,415 ÷ 3 = 43,807,471.6667
If the quotient is a whole number, then 3 and 43,807,471.6667 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 | 131,422,415 | |
| -1 | -131,422,415 |
Let's try dividing by 4:
131,422,415 ÷ 4 = 32,855,603.75
If the quotient is a whole number, then 4 and 32,855,603.75 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 | 131,422,415 | |
| -1 | 131,422,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 139 | 263 | 695 | 719 | 1,315 | 3,595 | 36,557 | 99,941 | 182,785 | 189,097 | 499,705 | 945,485 | 26,284,483 | 131,422,415 |
| -1 | -5 | -139 | -263 | -695 | -719 | -1,315 | -3,595 | -36,557 | -99,941 | -182,785 | -189,097 | -499,705 | -945,485 | -26,284,483 | -131,422,415 |
Here are some more numbers to try:
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