A:
Positive:
1 x 1254565555 x 250913117 x 1792236535 x 3584473113 x 1110235565 x 222047791 x 1586053955 x 31721
Negative:
-1 x -125456555-5 x -25091311-7 x -17922365-35 x -3584473-113 x -1110235-565 x -222047-791 x -158605-3955 x -31721
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 125,456,555, 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 | 125,456,555 | |
| -1 | -125,456,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,456,555.
Example:
1 x 125,456,555 = 125,456,555
and
-1 x -125,456,555 = 125,456,555
Notice both answers equal 125,456,555
With that explanation out of the way, let's continue. Next, we take the number 125,456,555 and divide it by 2:
125,456,555 ÷ 2 = 62,728,277.5
If the quotient is a whole number, then 2 and 62,728,277.5 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 | 125,456,555 | |
| -1 | -125,456,555 |
Now, we try dividing 125,456,555 by 3:
125,456,555 ÷ 3 = 41,818,851.6667
If the quotient is a whole number, then 3 and 41,818,851.6667 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 | 125,456,555 | |
| -1 | -125,456,555 |
Let's try dividing by 4:
125,456,555 ÷ 4 = 31,364,138.75
If the quotient is a whole number, then 4 and 31,364,138.75 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 | 125,456,555 | |
| -1 | 125,456,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 113 | 565 | 791 | 3,955 | 31,721 | 158,605 | 222,047 | 1,110,235 | 3,584,473 | 17,922,365 | 25,091,311 | 125,456,555 |
| -1 | -5 | -7 | -35 | -113 | -565 | -791 | -3,955 | -31,721 | -158,605 | -222,047 | -1,110,235 | -3,584,473 | -17,922,365 | -25,091,311 | -125,456,555 |
Here are some more numbers to try:
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