A:
Positive:
1 x 3817931343 x 88789159 x 647107101 x 378013149 x 2562372537 x 150494343 x 87915959 x 6407
Negative:
-1 x -38179313-43 x -887891-59 x -647107-101 x -378013-149 x -256237-2537 x -15049-4343 x -8791-5959 x -6407
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 38,179,313, 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 | 38,179,313 | |
| -1 | -38,179,313 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,179,313.
Example:
1 x 38,179,313 = 38,179,313
and
-1 x -38,179,313 = 38,179,313
Notice both answers equal 38,179,313
With that explanation out of the way, let's continue. Next, we take the number 38,179,313 and divide it by 2:
38,179,313 ÷ 2 = 19,089,656.5
If the quotient is a whole number, then 2 and 19,089,656.5 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 | 38,179,313 | |
| -1 | -38,179,313 |
Now, we try dividing 38,179,313 by 3:
38,179,313 ÷ 3 = 12,726,437.6667
If the quotient is a whole number, then 3 and 12,726,437.6667 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 | 38,179,313 | |
| -1 | -38,179,313 |
Let's try dividing by 4:
38,179,313 ÷ 4 = 9,544,828.25
If the quotient is a whole number, then 4 and 9,544,828.25 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 | 38,179,313 | |
| -1 | 38,179,313 |
If you did it right, you will end up with this table:
| 1 | 43 | 59 | 101 | 149 | 2,537 | 4,343 | 5,959 | 6,407 | 8,791 | 15,049 | 256,237 | 378,013 | 647,107 | 887,891 | 38,179,313 |
| -1 | -43 | -59 | -101 | -149 | -2,537 | -4,343 | -5,959 | -6,407 | -8,791 | -15,049 | -256,237 | -378,013 | -647,107 | -887,891 | -38,179,313 |
Here are some more numbers to try:
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