A:
Positive:
1 x 402011355 x 804022713 x 309239561 x 65903565 x 618479305 x 131807793 x 506953965 x 10139
Negative:
-1 x -40201135-5 x -8040227-13 x -3092395-61 x -659035-65 x -618479-305 x -131807-793 x -50695-3965 x -10139
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 40,201,135, 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 | 40,201,135 | |
| -1 | -40,201,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 40,201,135.
Example:
1 x 40,201,135 = 40,201,135
and
-1 x -40,201,135 = 40,201,135
Notice both answers equal 40,201,135
With that explanation out of the way, let's continue. Next, we take the number 40,201,135 and divide it by 2:
40,201,135 ÷ 2 = 20,100,567.5
If the quotient is a whole number, then 2 and 20,100,567.5 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 | 40,201,135 | |
| -1 | -40,201,135 |
Now, we try dividing 40,201,135 by 3:
40,201,135 ÷ 3 = 13,400,378.3333
If the quotient is a whole number, then 3 and 13,400,378.3333 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 | 40,201,135 | |
| -1 | -40,201,135 |
Let's try dividing by 4:
40,201,135 ÷ 4 = 10,050,283.75
If the quotient is a whole number, then 4 and 10,050,283.75 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 | 40,201,135 | |
| -1 | 40,201,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 61 | 65 | 305 | 793 | 3,965 | 10,139 | 50,695 | 131,807 | 618,479 | 659,035 | 3,092,395 | 8,040,227 | 40,201,135 |
| -1 | -5 | -13 | -61 | -65 | -305 | -793 | -3,965 | -10,139 | -50,695 | -131,807 | -618,479 | -659,035 | -3,092,395 | -8,040,227 | -40,201,135 |
Here are some more numbers to try:
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