A:
Positive:
1 x 66366529911 x 6033320923 x 2885501361 x 10879759253 x 2623183671 x 9890691403 x 47303315433 x 43003
Negative:
-1 x -663665299-11 x -60333209-23 x -28855013-61 x -10879759-253 x -2623183-671 x -989069-1403 x -473033-15433 x -43003
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 663,665,299, 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 | 663,665,299 | |
| -1 | -663,665,299 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 663,665,299.
Example:
1 x 663,665,299 = 663,665,299
and
-1 x -663,665,299 = 663,665,299
Notice both answers equal 663,665,299
With that explanation out of the way, let's continue. Next, we take the number 663,665,299 and divide it by 2:
663,665,299 ÷ 2 = 331,832,649.5
If the quotient is a whole number, then 2 and 331,832,649.5 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 | 663,665,299 | |
| -1 | -663,665,299 |
Now, we try dividing 663,665,299 by 3:
663,665,299 ÷ 3 = 221,221,766.3333
If the quotient is a whole number, then 3 and 221,221,766.3333 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 | 663,665,299 | |
| -1 | -663,665,299 |
Let's try dividing by 4:
663,665,299 ÷ 4 = 165,916,324.75
If the quotient is a whole number, then 4 and 165,916,324.75 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 | 663,665,299 | |
| -1 | 663,665,299 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 61 | 253 | 671 | 1,403 | 15,433 | 43,003 | 473,033 | 989,069 | 2,623,183 | 10,879,759 | 28,855,013 | 60,333,209 | 663,665,299 |
| -1 | -11 | -23 | -61 | -253 | -671 | -1,403 | -15,433 | -43,003 | -473,033 | -989,069 | -2,623,183 | -10,879,759 | -28,855,013 | -60,333,209 | -663,665,299 |
Here are some more numbers to try:
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