A:
Positive:
1 x 4781328855 x 9562657779 x 605231597 x 4929205395 x 1210463485 x 9858417663 x 6239512479 x 38315
Negative:
-1 x -478132885-5 x -95626577-79 x -6052315-97 x -4929205-395 x -1210463-485 x -985841-7663 x -62395-12479 x -38315
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 478,132,885, 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 | 478,132,885 | |
| -1 | -478,132,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 478,132,885.
Example:
1 x 478,132,885 = 478,132,885
and
-1 x -478,132,885 = 478,132,885
Notice both answers equal 478,132,885
With that explanation out of the way, let's continue. Next, we take the number 478,132,885 and divide it by 2:
478,132,885 ÷ 2 = 239,066,442.5
If the quotient is a whole number, then 2 and 239,066,442.5 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 | 478,132,885 | |
| -1 | -478,132,885 |
Now, we try dividing 478,132,885 by 3:
478,132,885 ÷ 3 = 159,377,628.3333
If the quotient is a whole number, then 3 and 159,377,628.3333 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 | 478,132,885 | |
| -1 | -478,132,885 |
Let's try dividing by 4:
478,132,885 ÷ 4 = 119,533,221.25
If the quotient is a whole number, then 4 and 119,533,221.25 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 | 478,132,885 | |
| -1 | 478,132,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 79 | 97 | 395 | 485 | 7,663 | 12,479 | 38,315 | 62,395 | 985,841 | 1,210,463 | 4,929,205 | 6,052,315 | 95,626,577 | 478,132,885 |
| -1 | -5 | -79 | -97 | -395 | -485 | -7,663 | -12,479 | -38,315 | -62,395 | -985,841 | -1,210,463 | -4,929,205 | -6,052,315 | -95,626,577 | -478,132,885 |
Here are some more numbers to try:
Try the factor calculator