A:
Positive:
1 x 806125555 x 1612251117 x 474191531 x 260040585 x 948383155 x 520081527 x 1529652635 x 30593
Negative:
-1 x -80612555-5 x -16122511-17 x -4741915-31 x -2600405-85 x -948383-155 x -520081-527 x -152965-2635 x -30593
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 80,612,555, 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 | 80,612,555 | |
| -1 | -80,612,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 80,612,555.
Example:
1 x 80,612,555 = 80,612,555
and
-1 x -80,612,555 = 80,612,555
Notice both answers equal 80,612,555
With that explanation out of the way, let's continue. Next, we take the number 80,612,555 and divide it by 2:
80,612,555 ÷ 2 = 40,306,277.5
If the quotient is a whole number, then 2 and 40,306,277.5 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 | 80,612,555 | |
| -1 | -80,612,555 |
Now, we try dividing 80,612,555 by 3:
80,612,555 ÷ 3 = 26,870,851.6667
If the quotient is a whole number, then 3 and 26,870,851.6667 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 | 80,612,555 | |
| -1 | -80,612,555 |
Let's try dividing by 4:
80,612,555 ÷ 4 = 20,153,138.75
If the quotient is a whole number, then 4 and 20,153,138.75 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 | 80,612,555 | |
| -1 | 80,612,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 31 | 85 | 155 | 527 | 2,635 | 30,593 | 152,965 | 520,081 | 948,383 | 2,600,405 | 4,741,915 | 16,122,511 | 80,612,555 |
| -1 | -5 | -17 | -31 | -85 | -155 | -527 | -2,635 | -30,593 | -152,965 | -520,081 | -948,383 | -2,600,405 | -4,741,915 | -16,122,511 | -80,612,555 |
Here are some more numbers to try:
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