A:
Positive:
1 x 2565676555 x 5131353117 x 1509221585 x 3018443433 x 5925352165 x 1185076971 x 368057361 x 34855
Negative:
-1 x -256567655-5 x -51313531-17 x -15092215-85 x -3018443-433 x -592535-2165 x -118507-6971 x -36805-7361 x -34855
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 256,567,655, 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 | 256,567,655 | |
| -1 | -256,567,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 256,567,655.
Example:
1 x 256,567,655 = 256,567,655
and
-1 x -256,567,655 = 256,567,655
Notice both answers equal 256,567,655
With that explanation out of the way, let's continue. Next, we take the number 256,567,655 and divide it by 2:
256,567,655 ÷ 2 = 128,283,827.5
If the quotient is a whole number, then 2 and 128,283,827.5 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 | 256,567,655 | |
| -1 | -256,567,655 |
Now, we try dividing 256,567,655 by 3:
256,567,655 ÷ 3 = 85,522,551.6667
If the quotient is a whole number, then 3 and 85,522,551.6667 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 | 256,567,655 | |
| -1 | -256,567,655 |
Let's try dividing by 4:
256,567,655 ÷ 4 = 64,141,913.75
If the quotient is a whole number, then 4 and 64,141,913.75 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 | 256,567,655 | |
| -1 | 256,567,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 433 | 2,165 | 6,971 | 7,361 | 34,855 | 36,805 | 118,507 | 592,535 | 3,018,443 | 15,092,215 | 51,313,531 | 256,567,655 |
| -1 | -5 | -17 | -85 | -433 | -2,165 | -6,971 | -7,361 | -34,855 | -36,805 | -118,507 | -592,535 | -3,018,443 | -15,092,215 | -51,313,531 | -256,567,655 |
Here are some more numbers to try:
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