A:
Positive:
1 x 865300555 x 1730601129 x 298379547 x 1841065145 x 596759235 x 3682131363 x 634856815 x 12697
Negative:
-1 x -86530055-5 x -17306011-29 x -2983795-47 x -1841065-145 x -596759-235 x -368213-1363 x -63485-6815 x -12697
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 86,530,055, 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 | 86,530,055 | |
| -1 | -86,530,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 86,530,055.
Example:
1 x 86,530,055 = 86,530,055
and
-1 x -86,530,055 = 86,530,055
Notice both answers equal 86,530,055
With that explanation out of the way, let's continue. Next, we take the number 86,530,055 and divide it by 2:
86,530,055 ÷ 2 = 43,265,027.5
If the quotient is a whole number, then 2 and 43,265,027.5 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 | 86,530,055 | |
| -1 | -86,530,055 |
Now, we try dividing 86,530,055 by 3:
86,530,055 ÷ 3 = 28,843,351.6667
If the quotient is a whole number, then 3 and 28,843,351.6667 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 | 86,530,055 | |
| -1 | -86,530,055 |
Let's try dividing by 4:
86,530,055 ÷ 4 = 21,632,513.75
If the quotient is a whole number, then 4 and 21,632,513.75 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 | 86,530,055 | |
| -1 | 86,530,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 47 | 145 | 235 | 1,363 | 6,815 | 12,697 | 63,485 | 368,213 | 596,759 | 1,841,065 | 2,983,795 | 17,306,011 | 86,530,055 |
| -1 | -5 | -29 | -47 | -145 | -235 | -1,363 | -6,815 | -12,697 | -63,485 | -368,213 | -596,759 | -1,841,065 | -2,983,795 | -17,306,011 | -86,530,055 |
Here are some more numbers to try:
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