A:
Positive:
1 x 3805687131 x 122764167 x 56801373 x 521327251 x 1516212077 x 183232263 x 168174891 x 7781
Negative:
-1 x -38056871-31 x -1227641-67 x -568013-73 x -521327-251 x -151621-2077 x -18323-2263 x -16817-4891 x -7781
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 38,056,871, 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 | 38,056,871 | |
| -1 | -38,056,871 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,056,871.
Example:
1 x 38,056,871 = 38,056,871
and
-1 x -38,056,871 = 38,056,871
Notice both answers equal 38,056,871
With that explanation out of the way, let's continue. Next, we take the number 38,056,871 and divide it by 2:
38,056,871 ÷ 2 = 19,028,435.5
If the quotient is a whole number, then 2 and 19,028,435.5 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 | 38,056,871 | |
| -1 | -38,056,871 |
Now, we try dividing 38,056,871 by 3:
38,056,871 ÷ 3 = 12,685,623.6667
If the quotient is a whole number, then 3 and 12,685,623.6667 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 | 38,056,871 | |
| -1 | -38,056,871 |
Let's try dividing by 4:
38,056,871 ÷ 4 = 9,514,217.75
If the quotient is a whole number, then 4 and 9,514,217.75 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 | 38,056,871 | |
| -1 | 38,056,871 |
If you did it right, you will end up with this table:
| 1 | 31 | 67 | 73 | 251 | 2,077 | 2,263 | 4,891 | 7,781 | 16,817 | 18,323 | 151,621 | 521,327 | 568,013 | 1,227,641 | 38,056,871 |
| -1 | -31 | -67 | -73 | -251 | -2,077 | -2,263 | -4,891 | -7,781 | -16,817 | -18,323 | -151,621 | -521,327 | -568,013 | -1,227,641 | -38,056,871 |
Here are some more numbers to try:
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