A:
Positive:
1 x 6641555355 x 13283110729 x 22901915145 x 4580383199 x 3337465995 x 6674935771 x 11508523017 x 28855
Negative:
-1 x -664155535-5 x -132831107-29 x -22901915-145 x -4580383-199 x -3337465-995 x -667493-5771 x -115085-23017 x -28855
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 664,155,535, 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 | 664,155,535 | |
| -1 | -664,155,535 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 664,155,535.
Example:
1 x 664,155,535 = 664,155,535
and
-1 x -664,155,535 = 664,155,535
Notice both answers equal 664,155,535
With that explanation out of the way, let's continue. Next, we take the number 664,155,535 and divide it by 2:
664,155,535 ÷ 2 = 332,077,767.5
If the quotient is a whole number, then 2 and 332,077,767.5 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 | 664,155,535 | |
| -1 | -664,155,535 |
Now, we try dividing 664,155,535 by 3:
664,155,535 ÷ 3 = 221,385,178.3333
If the quotient is a whole number, then 3 and 221,385,178.3333 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 | 664,155,535 | |
| -1 | -664,155,535 |
Let's try dividing by 4:
664,155,535 ÷ 4 = 166,038,883.75
If the quotient is a whole number, then 4 and 166,038,883.75 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 | 664,155,535 | |
| -1 | 664,155,535 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 199 | 995 | 5,771 | 23,017 | 28,855 | 115,085 | 667,493 | 3,337,465 | 4,580,383 | 22,901,915 | 132,831,107 | 664,155,535 |
| -1 | -5 | -29 | -145 | -199 | -995 | -5,771 | -23,017 | -28,855 | -115,085 | -667,493 | -3,337,465 | -4,580,383 | -22,901,915 | -132,831,107 | -664,155,535 |
Here are some more numbers to try:
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