A:
Positive:
1 x 6640306337 x 9486151931 x 21420343217 x 3060049911 x 7289033359 x 1976876377 x 10412923513 x 28241
Negative:
-1 x -664030633-7 x -94861519-31 x -21420343-217 x -3060049-911 x -728903-3359 x -197687-6377 x -104129-23513 x -28241
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 664,030,633, 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 | 664,030,633 | |
| -1 | -664,030,633 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 664,030,633.
Example:
1 x 664,030,633 = 664,030,633
and
-1 x -664,030,633 = 664,030,633
Notice both answers equal 664,030,633
With that explanation out of the way, let's continue. Next, we take the number 664,030,633 and divide it by 2:
664,030,633 ÷ 2 = 332,015,316.5
If the quotient is a whole number, then 2 and 332,015,316.5 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 | 664,030,633 | |
| -1 | -664,030,633 |
Now, we try dividing 664,030,633 by 3:
664,030,633 ÷ 3 = 221,343,544.3333
If the quotient is a whole number, then 3 and 221,343,544.3333 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 | 664,030,633 | |
| -1 | -664,030,633 |
Let's try dividing by 4:
664,030,633 ÷ 4 = 166,007,658.25
If the quotient is a whole number, then 4 and 166,007,658.25 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 | 664,030,633 | |
| -1 | 664,030,633 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 217 | 911 | 3,359 | 6,377 | 23,513 | 28,241 | 104,129 | 197,687 | 728,903 | 3,060,049 | 21,420,343 | 94,861,519 | 664,030,633 |
| -1 | -7 | -31 | -217 | -911 | -3,359 | -6,377 | -23,513 | -28,241 | -104,129 | -197,687 | -728,903 | -3,060,049 | -21,420,343 | -94,861,519 | -664,030,633 |
Here are some more numbers to try:
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