A:
Positive:
1 x 66561463111 x 6051042119 x 35032349209 x 31847591031 x 6456013089 x 21547911341 x 5869119589 x 33979
Negative:
-1 x -665614631-11 x -60510421-19 x -35032349-209 x -3184759-1031 x -645601-3089 x -215479-11341 x -58691-19589 x -33979
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 665,614,631, 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 | 665,614,631 | |
| -1 | -665,614,631 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 665,614,631.
Example:
1 x 665,614,631 = 665,614,631
and
-1 x -665,614,631 = 665,614,631
Notice both answers equal 665,614,631
With that explanation out of the way, let's continue. Next, we take the number 665,614,631 and divide it by 2:
665,614,631 ÷ 2 = 332,807,315.5
If the quotient is a whole number, then 2 and 332,807,315.5 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 | 665,614,631 | |
| -1 | -665,614,631 |
Now, we try dividing 665,614,631 by 3:
665,614,631 ÷ 3 = 221,871,543.6667
If the quotient is a whole number, then 3 and 221,871,543.6667 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 | 665,614,631 | |
| -1 | -665,614,631 |
Let's try dividing by 4:
665,614,631 ÷ 4 = 166,403,657.75
If the quotient is a whole number, then 4 and 166,403,657.75 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 | 665,614,631 | |
| -1 | 665,614,631 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 1,031 | 3,089 | 11,341 | 19,589 | 33,979 | 58,691 | 215,479 | 645,601 | 3,184,759 | 35,032,349 | 60,510,421 | 665,614,631 |
| -1 | -11 | -19 | -209 | -1,031 | -3,089 | -11,341 | -19,589 | -33,979 | -58,691 | -215,479 | -645,601 | -3,184,759 | -35,032,349 | -60,510,421 | -665,614,631 |
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