A:
Positive:
1 x 1642466655 x 3284933311 x 1493151555 x 2986303509 x 3226852545 x 645375599 x 293355867 x 27995
Negative:
-1 x -164246665-5 x -32849333-11 x -14931515-55 x -2986303-509 x -322685-2545 x -64537-5599 x -29335-5867 x -27995
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 164,246,665, 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 | 164,246,665 | |
| -1 | -164,246,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 164,246,665.
Example:
1 x 164,246,665 = 164,246,665
and
-1 x -164,246,665 = 164,246,665
Notice both answers equal 164,246,665
With that explanation out of the way, let's continue. Next, we take the number 164,246,665 and divide it by 2:
164,246,665 ÷ 2 = 82,123,332.5
If the quotient is a whole number, then 2 and 82,123,332.5 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 | 164,246,665 | |
| -1 | -164,246,665 |
Now, we try dividing 164,246,665 by 3:
164,246,665 ÷ 3 = 54,748,888.3333
If the quotient is a whole number, then 3 and 54,748,888.3333 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 | 164,246,665 | |
| -1 | -164,246,665 |
Let's try dividing by 4:
164,246,665 ÷ 4 = 41,061,666.25
If the quotient is a whole number, then 4 and 41,061,666.25 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 | 164,246,665 | |
| -1 | 164,246,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 509 | 2,545 | 5,599 | 5,867 | 27,995 | 29,335 | 64,537 | 322,685 | 2,986,303 | 14,931,515 | 32,849,333 | 164,246,665 |
| -1 | -5 | -11 | -55 | -509 | -2,545 | -5,599 | -5,867 | -27,995 | -29,335 | -64,537 | -322,685 | -2,986,303 | -14,931,515 | -32,849,333 | -164,246,665 |
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