A:
Positive:
1 x 4008106713 x 308315941 x 977587139 x 288353533 x 75199541 x 740871807 x 221815699 x 7033
Negative:
-1 x -40081067-13 x -3083159-41 x -977587-139 x -288353-533 x -75199-541 x -74087-1807 x -22181-5699 x -7033
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 40,081,067, 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 | 40,081,067 | |
| -1 | -40,081,067 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,081,067.
Example:
1 x 40,081,067 = 40,081,067
and
-1 x -40,081,067 = 40,081,067
Notice both answers equal 40,081,067
With that explanation out of the way, let's continue. Next, we take the number 40,081,067 and divide it by 2:
40,081,067 ÷ 2 = 20,040,533.5
If the quotient is a whole number, then 2 and 20,040,533.5 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 | 40,081,067 | |
| -1 | -40,081,067 |
Now, we try dividing 40,081,067 by 3:
40,081,067 ÷ 3 = 13,360,355.6667
If the quotient is a whole number, then 3 and 13,360,355.6667 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 | 40,081,067 | |
| -1 | -40,081,067 |
Let's try dividing by 4:
40,081,067 ÷ 4 = 10,020,266.75
If the quotient is a whole number, then 4 and 10,020,266.75 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 | 40,081,067 | |
| -1 | 40,081,067 |
If you did it right, you will end up with this table:
| 1 | 13 | 41 | 139 | 533 | 541 | 1,807 | 5,699 | 7,033 | 22,181 | 74,087 | 75,199 | 288,353 | 977,587 | 3,083,159 | 40,081,067 |
| -1 | -13 | -41 | -139 | -533 | -541 | -1,807 | -5,699 | -7,033 | -22,181 | -74,087 | -75,199 | -288,353 | -977,587 | -3,083,159 | -40,081,067 |
Here are some more numbers to try:
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