A:
Positive:
1 x 6666633555 x 13333267119 x 3508754595 x 70175091097 x 6077155485 x 1215436397 x 10421520843 x 31985
Negative:
-1 x -666663355-5 x -133332671-19 x -35087545-95 x -7017509-1097 x -607715-5485 x -121543-6397 x -104215-20843 x -31985
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 666,663,355, 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 | 666,663,355 | |
| -1 | -666,663,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 666,663,355.
Example:
1 x 666,663,355 = 666,663,355
and
-1 x -666,663,355 = 666,663,355
Notice both answers equal 666,663,355
With that explanation out of the way, let's continue. Next, we take the number 666,663,355 and divide it by 2:
666,663,355 ÷ 2 = 333,331,677.5
If the quotient is a whole number, then 2 and 333,331,677.5 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 | 666,663,355 | |
| -1 | -666,663,355 |
Now, we try dividing 666,663,355 by 3:
666,663,355 ÷ 3 = 222,221,118.3333
If the quotient is a whole number, then 3 and 222,221,118.3333 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 | 666,663,355 | |
| -1 | -666,663,355 |
Let's try dividing by 4:
666,663,355 ÷ 4 = 166,665,838.75
If the quotient is a whole number, then 4 and 166,665,838.75 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 | 666,663,355 | |
| -1 | 666,663,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 1,097 | 5,485 | 6,397 | 20,843 | 31,985 | 104,215 | 121,543 | 607,715 | 7,017,509 | 35,087,545 | 133,332,671 | 666,663,355 |
| -1 | -5 | -19 | -95 | -1,097 | -5,485 | -6,397 | -20,843 | -31,985 | -104,215 | -121,543 | -607,715 | -7,017,509 | -35,087,545 | -133,332,671 | -666,663,355 |
Here are some more numbers to try:
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