A:
Positive:
1 x 66674672911 x 6061333931 x 2150795971 x 9390799341 x 1955269781 x 8537092201 x 30292924211 x 27539
Negative:
-1 x -666746729-11 x -60613339-31 x -21507959-71 x -9390799-341 x -1955269-781 x -853709-2201 x -302929-24211 x -27539
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 666,746,729, 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 | 666,746,729 | |
| -1 | -666,746,729 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 666,746,729.
Example:
1 x 666,746,729 = 666,746,729
and
-1 x -666,746,729 = 666,746,729
Notice both answers equal 666,746,729
With that explanation out of the way, let's continue. Next, we take the number 666,746,729 and divide it by 2:
666,746,729 ÷ 2 = 333,373,364.5
If the quotient is a whole number, then 2 and 333,373,364.5 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 | 666,746,729 | |
| -1 | -666,746,729 |
Now, we try dividing 666,746,729 by 3:
666,746,729 ÷ 3 = 222,248,909.6667
If the quotient is a whole number, then 3 and 222,248,909.6667 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 | 666,746,729 | |
| -1 | -666,746,729 |
Let's try dividing by 4:
666,746,729 ÷ 4 = 166,686,682.25
If the quotient is a whole number, then 4 and 166,686,682.25 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 | 666,746,729 | |
| -1 | 666,746,729 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 71 | 341 | 781 | 2,201 | 24,211 | 27,539 | 302,929 | 853,709 | 1,955,269 | 9,390,799 | 21,507,959 | 60,613,339 | 666,746,729 |
| -1 | -11 | -31 | -71 | -341 | -781 | -2,201 | -24,211 | -27,539 | -302,929 | -853,709 | -1,955,269 | -9,390,799 | -21,507,959 | -60,613,339 | -666,746,729 |
Here are some more numbers to try:
Try the factor calculator