A:
Positive:
1 x 6632370655 x 13264741317 x 3901394585 x 7802789179 x 3705235895 x 7410473043 x 21795515215 x 43591
Negative:
-1 x -663237065-5 x -132647413-17 x -39013945-85 x -7802789-179 x -3705235-895 x -741047-3043 x -217955-15215 x -43591
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 663,237,065, 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 | 663,237,065 | |
| -1 | -663,237,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 663,237,065.
Example:
1 x 663,237,065 = 663,237,065
and
-1 x -663,237,065 = 663,237,065
Notice both answers equal 663,237,065
With that explanation out of the way, let's continue. Next, we take the number 663,237,065 and divide it by 2:
663,237,065 ÷ 2 = 331,618,532.5
If the quotient is a whole number, then 2 and 331,618,532.5 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 | 663,237,065 | |
| -1 | -663,237,065 |
Now, we try dividing 663,237,065 by 3:
663,237,065 ÷ 3 = 221,079,021.6667
If the quotient is a whole number, then 3 and 221,079,021.6667 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 | 663,237,065 | |
| -1 | -663,237,065 |
Let's try dividing by 4:
663,237,065 ÷ 4 = 165,809,266.25
If the quotient is a whole number, then 4 and 165,809,266.25 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 | 663,237,065 | |
| -1 | 663,237,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 179 | 895 | 3,043 | 15,215 | 43,591 | 217,955 | 741,047 | 3,705,235 | 7,802,789 | 39,013,945 | 132,647,413 | 663,237,065 |
| -1 | -5 | -17 | -85 | -179 | -895 | -3,043 | -15,215 | -43,591 | -217,955 | -741,047 | -3,705,235 | -7,802,789 | -39,013,945 | -132,647,413 | -663,237,065 |
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