A:
Positive:
1 x 801414355 x 1602828711 x 728558555 x 1457117157 x 510455785 x 1020911727 x 464058635 x 9281
Negative:
-1 x -80141435-5 x -16028287-11 x -7285585-55 x -1457117-157 x -510455-785 x -102091-1727 x -46405-8635 x -9281
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 80,141,435, 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 | 80,141,435 | |
| -1 | -80,141,435 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 80,141,435.
Example:
1 x 80,141,435 = 80,141,435
and
-1 x -80,141,435 = 80,141,435
Notice both answers equal 80,141,435
With that explanation out of the way, let's continue. Next, we take the number 80,141,435 and divide it by 2:
80,141,435 ÷ 2 = 40,070,717.5
If the quotient is a whole number, then 2 and 40,070,717.5 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 | 80,141,435 | |
| -1 | -80,141,435 |
Now, we try dividing 80,141,435 by 3:
80,141,435 ÷ 3 = 26,713,811.6667
If the quotient is a whole number, then 3 and 26,713,811.6667 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 | 80,141,435 | |
| -1 | -80,141,435 |
Let's try dividing by 4:
80,141,435 ÷ 4 = 20,035,358.75
If the quotient is a whole number, then 4 and 20,035,358.75 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 | 80,141,435 | |
| -1 | 80,141,435 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 157 | 785 | 1,727 | 8,635 | 9,281 | 46,405 | 102,091 | 510,455 | 1,457,117 | 7,285,585 | 16,028,287 | 80,141,435 |
| -1 | -5 | -11 | -55 | -157 | -785 | -1,727 | -8,635 | -9,281 | -46,405 | -102,091 | -510,455 | -1,457,117 | -7,285,585 | -16,028,287 | -80,141,435 |
Here are some more numbers to try:
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