A:
Positive:
1 x 2045531655 x 4091063347 x 4352195113 x 1810205235 x 870439565 x 3620415311 x 385157703 x 26555
Negative:
-1 x -204553165-5 x -40910633-47 x -4352195-113 x -1810205-235 x -870439-565 x -362041-5311 x -38515-7703 x -26555
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 204,553,165, 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 | 204,553,165 | |
| -1 | -204,553,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 204,553,165.
Example:
1 x 204,553,165 = 204,553,165
and
-1 x -204,553,165 = 204,553,165
Notice both answers equal 204,553,165
With that explanation out of the way, let's continue. Next, we take the number 204,553,165 and divide it by 2:
204,553,165 ÷ 2 = 102,276,582.5
If the quotient is a whole number, then 2 and 102,276,582.5 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 | 204,553,165 | |
| -1 | -204,553,165 |
Now, we try dividing 204,553,165 by 3:
204,553,165 ÷ 3 = 68,184,388.3333
If the quotient is a whole number, then 3 and 68,184,388.3333 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 | 204,553,165 | |
| -1 | -204,553,165 |
Let's try dividing by 4:
204,553,165 ÷ 4 = 51,138,291.25
If the quotient is a whole number, then 4 and 51,138,291.25 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 | 204,553,165 | |
| -1 | 204,553,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 113 | 235 | 565 | 5,311 | 7,703 | 26,555 | 38,515 | 362,041 | 870,439 | 1,810,205 | 4,352,195 | 40,910,633 | 204,553,165 |
| -1 | -5 | -47 | -113 | -235 | -565 | -5,311 | -7,703 | -26,555 | -38,515 | -362,041 | -870,439 | -1,810,205 | -4,352,195 | -40,910,633 | -204,553,165 |
Here are some more numbers to try:
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