A:
Positive:
1 x 1606868455 x 3213736911 x 1460789555 x 292157971 x 2263195355 x 452639781 x 2057453905 x 41149
Negative:
-1 x -160686845-5 x -32137369-11 x -14607895-55 x -2921579-71 x -2263195-355 x -452639-781 x -205745-3905 x -41149
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 160,686,845, 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 | 160,686,845 | |
| -1 | -160,686,845 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 160,686,845.
Example:
1 x 160,686,845 = 160,686,845
and
-1 x -160,686,845 = 160,686,845
Notice both answers equal 160,686,845
With that explanation out of the way, let's continue. Next, we take the number 160,686,845 and divide it by 2:
160,686,845 ÷ 2 = 80,343,422.5
If the quotient is a whole number, then 2 and 80,343,422.5 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 | 160,686,845 | |
| -1 | -160,686,845 |
Now, we try dividing 160,686,845 by 3:
160,686,845 ÷ 3 = 53,562,281.6667
If the quotient is a whole number, then 3 and 53,562,281.6667 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 | 160,686,845 | |
| -1 | -160,686,845 |
Let's try dividing by 4:
160,686,845 ÷ 4 = 40,171,711.25
If the quotient is a whole number, then 4 and 40,171,711.25 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 | 160,686,845 | |
| -1 | 160,686,845 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 71 | 355 | 781 | 3,905 | 41,149 | 205,745 | 452,639 | 2,263,195 | 2,921,579 | 14,607,895 | 32,137,369 | 160,686,845 |
| -1 | -5 | -11 | -55 | -71 | -355 | -781 | -3,905 | -41,149 | -205,745 | -452,639 | -2,263,195 | -2,921,579 | -14,607,895 | -32,137,369 | -160,686,845 |
Here are some more numbers to try:
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