A:
Positive:
1 x 6663613455 x 13327226913 x 5125856565 x 102517132423 x 2750154231 x 15749512115 x 5500321155 x 31499
Negative:
-1 x -666361345-5 x -133272269-13 x -51258565-65 x -10251713-2423 x -275015-4231 x -157495-12115 x -55003-21155 x -31499
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 666,361,345, 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 | 666,361,345 | |
| -1 | -666,361,345 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 666,361,345.
Example:
1 x 666,361,345 = 666,361,345
and
-1 x -666,361,345 = 666,361,345
Notice both answers equal 666,361,345
With that explanation out of the way, let's continue. Next, we take the number 666,361,345 and divide it by 2:
666,361,345 ÷ 2 = 333,180,672.5
If the quotient is a whole number, then 2 and 333,180,672.5 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 | 666,361,345 | |
| -1 | -666,361,345 |
Now, we try dividing 666,361,345 by 3:
666,361,345 ÷ 3 = 222,120,448.3333
If the quotient is a whole number, then 3 and 222,120,448.3333 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 | 666,361,345 | |
| -1 | -666,361,345 |
Let's try dividing by 4:
666,361,345 ÷ 4 = 166,590,336.25
If the quotient is a whole number, then 4 and 166,590,336.25 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 | 666,361,345 | |
| -1 | 666,361,345 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 2,423 | 4,231 | 12,115 | 21,155 | 31,499 | 55,003 | 157,495 | 275,015 | 10,251,713 | 51,258,565 | 133,272,269 | 666,361,345 |
| -1 | -5 | -13 | -65 | -2,423 | -4,231 | -12,115 | -21,155 | -31,499 | -55,003 | -157,495 | -275,015 | -10,251,713 | -51,258,565 | -133,272,269 | -666,361,345 |
Here are some more numbers to try:
Try the factor calculator