A:
Positive:
1 x 6665555655 x 13331111313 x 5127350565 x 102547012843 x 2344553607 x 18479514215 x 4689118035 x 36959
Negative:
-1 x -666555565-5 x -133311113-13 x -51273505-65 x -10254701-2843 x -234455-3607 x -184795-14215 x -46891-18035 x -36959
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 666,555,565, 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 | 666,555,565 | |
| -1 | -666,555,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 666,555,565.
Example:
1 x 666,555,565 = 666,555,565
and
-1 x -666,555,565 = 666,555,565
Notice both answers equal 666,555,565
With that explanation out of the way, let's continue. Next, we take the number 666,555,565 and divide it by 2:
666,555,565 ÷ 2 = 333,277,782.5
If the quotient is a whole number, then 2 and 333,277,782.5 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 | 666,555,565 | |
| -1 | -666,555,565 |
Now, we try dividing 666,555,565 by 3:
666,555,565 ÷ 3 = 222,185,188.3333
If the quotient is a whole number, then 3 and 222,185,188.3333 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 | 666,555,565 | |
| -1 | -666,555,565 |
Let's try dividing by 4:
666,555,565 ÷ 4 = 166,638,891.25
If the quotient is a whole number, then 4 and 166,638,891.25 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 | 666,555,565 | |
| -1 | 666,555,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 2,843 | 3,607 | 14,215 | 18,035 | 36,959 | 46,891 | 184,795 | 234,455 | 10,254,701 | 51,273,505 | 133,311,113 | 666,555,565 |
| -1 | -5 | -13 | -65 | -2,843 | -3,607 | -14,215 | -18,035 | -36,959 | -46,891 | -184,795 | -234,455 | -10,254,701 | -51,273,505 | -133,311,113 | -666,555,565 |
Here are some more numbers to try:
Try the factor calculator