A:
Positive:
1 x 2014031155 x 4028062329 x 6944935109 x 1847735145 x 1388987545 x 3695473161 x 6371512743 x 15805
Negative:
-1 x -201403115-5 x -40280623-29 x -6944935-109 x -1847735-145 x -1388987-545 x -369547-3161 x -63715-12743 x -15805
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 201,403,115, 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 | 201,403,115 | |
| -1 | -201,403,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 201,403,115.
Example:
1 x 201,403,115 = 201,403,115
and
-1 x -201,403,115 = 201,403,115
Notice both answers equal 201,403,115
With that explanation out of the way, let's continue. Next, we take the number 201,403,115 and divide it by 2:
201,403,115 ÷ 2 = 100,701,557.5
If the quotient is a whole number, then 2 and 100,701,557.5 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 | 201,403,115 | |
| -1 | -201,403,115 |
Now, we try dividing 201,403,115 by 3:
201,403,115 ÷ 3 = 67,134,371.6667
If the quotient is a whole number, then 3 and 67,134,371.6667 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 | 201,403,115 | |
| -1 | -201,403,115 |
Let's try dividing by 4:
201,403,115 ÷ 4 = 50,350,778.75
If the quotient is a whole number, then 4 and 50,350,778.75 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 | 201,403,115 | |
| -1 | 201,403,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 109 | 145 | 545 | 3,161 | 12,743 | 15,805 | 63,715 | 369,547 | 1,388,987 | 1,847,735 | 6,944,935 | 40,280,623 | 201,403,115 |
| -1 | -5 | -29 | -109 | -145 | -545 | -3,161 | -12,743 | -15,805 | -63,715 | -369,547 | -1,388,987 | -1,847,735 | -6,944,935 | -40,280,623 | -201,403,115 |
Here are some more numbers to try:
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