A:
Positive:
1 x 1179915555 x 2359831111 x 1072650555 x 214530183 x 1421585415 x 284317913 x 1292354565 x 25847
Negative:
-1 x -117991555-5 x -23598311-11 x -10726505-55 x -2145301-83 x -1421585-415 x -284317-913 x -129235-4565 x -25847
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 117,991,555, 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 | 117,991,555 | |
| -1 | -117,991,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 117,991,555.
Example:
1 x 117,991,555 = 117,991,555
and
-1 x -117,991,555 = 117,991,555
Notice both answers equal 117,991,555
With that explanation out of the way, let's continue. Next, we take the number 117,991,555 and divide it by 2:
117,991,555 ÷ 2 = 58,995,777.5
If the quotient is a whole number, then 2 and 58,995,777.5 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 | 117,991,555 | |
| -1 | -117,991,555 |
Now, we try dividing 117,991,555 by 3:
117,991,555 ÷ 3 = 39,330,518.3333
If the quotient is a whole number, then 3 and 39,330,518.3333 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 | 117,991,555 | |
| -1 | -117,991,555 |
Let's try dividing by 4:
117,991,555 ÷ 4 = 29,497,888.75
If the quotient is a whole number, then 4 and 29,497,888.75 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 | 117,991,555 | |
| -1 | 117,991,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 83 | 415 | 913 | 4,565 | 25,847 | 129,235 | 284,317 | 1,421,585 | 2,145,301 | 10,726,505 | 23,598,311 | 117,991,555 |
| -1 | -5 | -11 | -55 | -83 | -415 | -913 | -4,565 | -25,847 | -129,235 | -284,317 | -1,421,585 | -2,145,301 | -10,726,505 | -23,598,311 | -117,991,555 |
Here are some more numbers to try:
Try the factor calculator