A:
Positive:
1 x 66405142713 x 5108087971 x 935283797 x 6845891923 x 7194491261 x 5266076887 x 964217417 x 89531
Negative:
-1 x -664051427-13 x -51080879-71 x -9352837-97 x -6845891-923 x -719449-1261 x -526607-6887 x -96421-7417 x -89531
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 664,051,427, 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 | 664,051,427 | |
| -1 | -664,051,427 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 664,051,427.
Example:
1 x 664,051,427 = 664,051,427
and
-1 x -664,051,427 = 664,051,427
Notice both answers equal 664,051,427
With that explanation out of the way, let's continue. Next, we take the number 664,051,427 and divide it by 2:
664,051,427 ÷ 2 = 332,025,713.5
If the quotient is a whole number, then 2 and 332,025,713.5 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 | 664,051,427 | |
| -1 | -664,051,427 |
Now, we try dividing 664,051,427 by 3:
664,051,427 ÷ 3 = 221,350,475.6667
If the quotient is a whole number, then 3 and 221,350,475.6667 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 | 664,051,427 | |
| -1 | -664,051,427 |
Let's try dividing by 4:
664,051,427 ÷ 4 = 166,012,856.75
If the quotient is a whole number, then 4 and 166,012,856.75 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 | 664,051,427 | |
| -1 | 664,051,427 |
If you did it right, you will end up with this table:
| 1 | 13 | 71 | 97 | 923 | 1,261 | 6,887 | 7,417 | 89,531 | 96,421 | 526,607 | 719,449 | 6,845,891 | 9,352,837 | 51,080,879 | 664,051,427 |
| -1 | -13 | -71 | -97 | -923 | -1,261 | -6,887 | -7,417 | -89,531 | -96,421 | -526,607 | -719,449 | -6,845,891 | -9,352,837 | -51,080,879 | -664,051,427 |
Here are some more numbers to try:
Try the factor calculator