A:
Positive:
1 x 800611555 x 1601223119 x 421374537 x 216381595 x 842749185 x 432763703 x 1138853515 x 22777
Negative:
-1 x -80061155-5 x -16012231-19 x -4213745-37 x -2163815-95 x -842749-185 x -432763-703 x -113885-3515 x -22777
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 80,061,155, 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 | 80,061,155 | |
| -1 | -80,061,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 80,061,155.
Example:
1 x 80,061,155 = 80,061,155
and
-1 x -80,061,155 = 80,061,155
Notice both answers equal 80,061,155
With that explanation out of the way, let's continue. Next, we take the number 80,061,155 and divide it by 2:
80,061,155 ÷ 2 = 40,030,577.5
If the quotient is a whole number, then 2 and 40,030,577.5 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 | 80,061,155 | |
| -1 | -80,061,155 |
Now, we try dividing 80,061,155 by 3:
80,061,155 ÷ 3 = 26,687,051.6667
If the quotient is a whole number, then 3 and 26,687,051.6667 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 | 80,061,155 | |
| -1 | -80,061,155 |
Let's try dividing by 4:
80,061,155 ÷ 4 = 20,015,288.75
If the quotient is a whole number, then 4 and 20,015,288.75 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 | 80,061,155 | |
| -1 | 80,061,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 37 | 95 | 185 | 703 | 3,515 | 22,777 | 113,885 | 432,763 | 842,749 | 2,163,815 | 4,213,745 | 16,012,231 | 80,061,155 |
| -1 | -5 | -19 | -37 | -95 | -185 | -703 | -3,515 | -22,777 | -113,885 | -432,763 | -842,749 | -2,163,815 | -4,213,745 | -16,012,231 | -80,061,155 |
Here are some more numbers to try:
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