A:
Positive:
1 x 4032045055 x 8064090111 x 3665495555 x 7330991521 x 7739052605 x 1547815731 x 7035514071 x 28655
Negative:
-1 x -403204505-5 x -80640901-11 x -36654955-55 x -7330991-521 x -773905-2605 x -154781-5731 x -70355-14071 x -28655
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 403,204,505, 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 | 403,204,505 | |
| -1 | -403,204,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 403,204,505.
Example:
1 x 403,204,505 = 403,204,505
and
-1 x -403,204,505 = 403,204,505
Notice both answers equal 403,204,505
With that explanation out of the way, let's continue. Next, we take the number 403,204,505 and divide it by 2:
403,204,505 ÷ 2 = 201,602,252.5
If the quotient is a whole number, then 2 and 201,602,252.5 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 | 403,204,505 | |
| -1 | -403,204,505 |
Now, we try dividing 403,204,505 by 3:
403,204,505 ÷ 3 = 134,401,501.6667
If the quotient is a whole number, then 3 and 134,401,501.6667 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 | 403,204,505 | |
| -1 | -403,204,505 |
Let's try dividing by 4:
403,204,505 ÷ 4 = 100,801,126.25
If the quotient is a whole number, then 4 and 100,801,126.25 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 | 403,204,505 | |
| -1 | 403,204,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 521 | 2,605 | 5,731 | 14,071 | 28,655 | 70,355 | 154,781 | 773,905 | 7,330,991 | 36,654,955 | 80,640,901 | 403,204,505 |
| -1 | -5 | -11 | -55 | -521 | -2,605 | -5,731 | -14,071 | -28,655 | -70,355 | -154,781 | -773,905 | -7,330,991 | -36,654,955 | -80,640,901 | -403,204,505 |
Here are some more numbers to try:
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