A:
Positive:
1 x 1609776655 x 3219553359 x 2728435191 x 842815295 x 545687955 x 1685632857 x 5634511269 x 14285
Negative:
-1 x -160977665-5 x -32195533-59 x -2728435-191 x -842815-295 x -545687-955 x -168563-2857 x -56345-11269 x -14285
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 160,977,665, 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 | 160,977,665 | |
| -1 | -160,977,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,977,665.
Example:
1 x 160,977,665 = 160,977,665
and
-1 x -160,977,665 = 160,977,665
Notice both answers equal 160,977,665
With that explanation out of the way, let's continue. Next, we take the number 160,977,665 and divide it by 2:
160,977,665 ÷ 2 = 80,488,832.5
If the quotient is a whole number, then 2 and 80,488,832.5 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 | 160,977,665 | |
| -1 | -160,977,665 |
Now, we try dividing 160,977,665 by 3:
160,977,665 ÷ 3 = 53,659,221.6667
If the quotient is a whole number, then 3 and 53,659,221.6667 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 | 160,977,665 | |
| -1 | -160,977,665 |
Let's try dividing by 4:
160,977,665 ÷ 4 = 40,244,416.25
If the quotient is a whole number, then 4 and 40,244,416.25 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 | 160,977,665 | |
| -1 | 160,977,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 59 | 191 | 295 | 955 | 2,857 | 11,269 | 14,285 | 56,345 | 168,563 | 545,687 | 842,815 | 2,728,435 | 32,195,533 | 160,977,665 |
| -1 | -5 | -59 | -191 | -295 | -955 | -2,857 | -11,269 | -14,285 | -56,345 | -168,563 | -545,687 | -842,815 | -2,728,435 | -32,195,533 | -160,977,665 |
Here are some more numbers to try:
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