A:
Positive:
1 x 66601550337 x 18000419179 x 3720757227 x 2933989443 x 15034216623 x 1005618399 x 7929716391 x 40633
Negative:
-1 x -666015503-37 x -18000419-179 x -3720757-227 x -2933989-443 x -1503421-6623 x -100561-8399 x -79297-16391 x -40633
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 666,015,503, 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 | 666,015,503 | |
| -1 | -666,015,503 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 666,015,503.
Example:
1 x 666,015,503 = 666,015,503
and
-1 x -666,015,503 = 666,015,503
Notice both answers equal 666,015,503
With that explanation out of the way, let's continue. Next, we take the number 666,015,503 and divide it by 2:
666,015,503 ÷ 2 = 333,007,751.5
If the quotient is a whole number, then 2 and 333,007,751.5 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 | 666,015,503 | |
| -1 | -666,015,503 |
Now, we try dividing 666,015,503 by 3:
666,015,503 ÷ 3 = 222,005,167.6667
If the quotient is a whole number, then 3 and 222,005,167.6667 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 | 666,015,503 | |
| -1 | -666,015,503 |
Let's try dividing by 4:
666,015,503 ÷ 4 = 166,503,875.75
If the quotient is a whole number, then 4 and 166,503,875.75 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 | 666,015,503 | |
| -1 | 666,015,503 |
If you did it right, you will end up with this table:
| 1 | 37 | 179 | 227 | 443 | 6,623 | 8,399 | 16,391 | 40,633 | 79,297 | 100,561 | 1,503,421 | 2,933,989 | 3,720,757 | 18,000,419 | 666,015,503 |
| -1 | -37 | -179 | -227 | -443 | -6,623 | -8,399 | -16,391 | -40,633 | -79,297 | -100,561 | -1,503,421 | -2,933,989 | -3,720,757 | -18,000,419 | -666,015,503 |
Here are some more numbers to try:
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