A:
Positive:
1 x 6642265637 x 9488950911 x 6038423313 x 5109435177 x 862631991 x 7299193143 x 46449411001 x 663563
Negative:
-1 x -664226563-7 x -94889509-11 x -60384233-13 x -51094351-77 x -8626319-91 x -7299193-143 x -4644941-1001 x -663563
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 664,226,563, 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 | 664,226,563 | |
| -1 | -664,226,563 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 664,226,563.
Example:
1 x 664,226,563 = 664,226,563
and
-1 x -664,226,563 = 664,226,563
Notice both answers equal 664,226,563
With that explanation out of the way, let's continue. Next, we take the number 664,226,563 and divide it by 2:
664,226,563 ÷ 2 = 332,113,281.5
If the quotient is a whole number, then 2 and 332,113,281.5 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 | 664,226,563 | |
| -1 | -664,226,563 |
Now, we try dividing 664,226,563 by 3:
664,226,563 ÷ 3 = 221,408,854.3333
If the quotient is a whole number, then 3 and 221,408,854.3333 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 | 664,226,563 | |
| -1 | -664,226,563 |
Let's try dividing by 4:
664,226,563 ÷ 4 = 166,056,640.75
If the quotient is a whole number, then 4 and 166,056,640.75 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 | 664,226,563 | |
| -1 | 664,226,563 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 13 | 77 | 91 | 143 | 1,001 | 663,563 | 4,644,941 | 7,299,193 | 8,626,319 | 51,094,351 | 60,384,233 | 94,889,509 | 664,226,563 |
| -1 | -7 | -11 | -13 | -77 | -91 | -143 | -1,001 | -663,563 | -4,644,941 | -7,299,193 | -8,626,319 | -51,094,351 | -60,384,233 | -94,889,509 | -664,226,563 |
Here are some more numbers to try:
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