A:
Positive:
1 x 12673241319 x 667012759 x 2148007131 x 967423863 x 1468511121 x 1130532489 x 509177729 x 16397
Negative:
-1 x -126732413-19 x -6670127-59 x -2148007-131 x -967423-863 x -146851-1121 x -113053-2489 x -50917-7729 x -16397
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 126,732,413, 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 | 126,732,413 | |
| -1 | -126,732,413 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 126,732,413.
Example:
1 x 126,732,413 = 126,732,413
and
-1 x -126,732,413 = 126,732,413
Notice both answers equal 126,732,413
With that explanation out of the way, let's continue. Next, we take the number 126,732,413 and divide it by 2:
126,732,413 ÷ 2 = 63,366,206.5
If the quotient is a whole number, then 2 and 63,366,206.5 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 | 126,732,413 | |
| -1 | -126,732,413 |
Now, we try dividing 126,732,413 by 3:
126,732,413 ÷ 3 = 42,244,137.6667
If the quotient is a whole number, then 3 and 42,244,137.6667 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 | 126,732,413 | |
| -1 | -126,732,413 |
Let's try dividing by 4:
126,732,413 ÷ 4 = 31,683,103.25
If the quotient is a whole number, then 4 and 31,683,103.25 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 | 126,732,413 | |
| -1 | 126,732,413 |
If you did it right, you will end up with this table:
| 1 | 19 | 59 | 131 | 863 | 1,121 | 2,489 | 7,729 | 16,397 | 50,917 | 113,053 | 146,851 | 967,423 | 2,148,007 | 6,670,127 | 126,732,413 |
| -1 | -19 | -59 | -131 | -863 | -1,121 | -2,489 | -7,729 | -16,397 | -50,917 | -113,053 | -146,851 | -967,423 | -2,148,007 | -6,670,127 | -126,732,413 |
Here are some more numbers to try:
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