A:
Positive:
1 x 6605122555 x 13210245113 x 5080863541 x 1611005565 x 10161727205 x 3222011533 x 12392352665 x 247847
Negative:
-1 x -660512255-5 x -132102451-13 x -50808635-41 x -16110055-65 x -10161727-205 x -3222011-533 x -1239235-2665 x -247847
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 660,512,255, 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 | 660,512,255 | |
| -1 | -660,512,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 660,512,255.
Example:
1 x 660,512,255 = 660,512,255
and
-1 x -660,512,255 = 660,512,255
Notice both answers equal 660,512,255
With that explanation out of the way, let's continue. Next, we take the number 660,512,255 and divide it by 2:
660,512,255 ÷ 2 = 330,256,127.5
If the quotient is a whole number, then 2 and 330,256,127.5 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 | 660,512,255 | |
| -1 | -660,512,255 |
Now, we try dividing 660,512,255 by 3:
660,512,255 ÷ 3 = 220,170,751.6667
If the quotient is a whole number, then 3 and 220,170,751.6667 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 | 660,512,255 | |
| -1 | -660,512,255 |
Let's try dividing by 4:
660,512,255 ÷ 4 = 165,128,063.75
If the quotient is a whole number, then 4 and 165,128,063.75 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 | 660,512,255 | |
| -1 | 660,512,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 41 | 65 | 205 | 533 | 2,665 | 247,847 | 1,239,235 | 3,222,011 | 10,161,727 | 16,110,055 | 50,808,635 | 132,102,451 | 660,512,255 |
| -1 | -5 | -13 | -41 | -65 | -205 | -533 | -2,665 | -247,847 | -1,239,235 | -3,222,011 | -10,161,727 | -16,110,055 | -50,808,635 | -132,102,451 | -660,512,255 |
Here are some more numbers to try:
Try the factor calculator