A:
Positive:
1 x 4030001655 x 8060003319 x 2121053595 x 4242107821 x 4908654105 x 981735167 x 7799515599 x 25835
Negative:
-1 x -403000165-5 x -80600033-19 x -21210535-95 x -4242107-821 x -490865-4105 x -98173-5167 x -77995-15599 x -25835
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 403,000,165, 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 | 403,000,165 | |
| -1 | -403,000,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 403,000,165.
Example:
1 x 403,000,165 = 403,000,165
and
-1 x -403,000,165 = 403,000,165
Notice both answers equal 403,000,165
With that explanation out of the way, let's continue. Next, we take the number 403,000,165 and divide it by 2:
403,000,165 ÷ 2 = 201,500,082.5
If the quotient is a whole number, then 2 and 201,500,082.5 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 | 403,000,165 | |
| -1 | -403,000,165 |
Now, we try dividing 403,000,165 by 3:
403,000,165 ÷ 3 = 134,333,388.3333
If the quotient is a whole number, then 3 and 134,333,388.3333 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 | 403,000,165 | |
| -1 | -403,000,165 |
Let's try dividing by 4:
403,000,165 ÷ 4 = 100,750,041.25
If the quotient is a whole number, then 4 and 100,750,041.25 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 | 403,000,165 | |
| -1 | 403,000,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 821 | 4,105 | 5,167 | 15,599 | 25,835 | 77,995 | 98,173 | 490,865 | 4,242,107 | 21,210,535 | 80,600,033 | 403,000,165 |
| -1 | -5 | -19 | -95 | -821 | -4,105 | -5,167 | -15,599 | -25,835 | -77,995 | -98,173 | -490,865 | -4,242,107 | -21,210,535 | -80,600,033 | -403,000,165 |
Here are some more numbers to try:
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