A:
Positive:
1 x 127001355 x 25400277 x 181430535 x 362861109 x 116515545 x 23303763 x 166453329 x 3815
Negative:
-1 x -12700135-5 x -2540027-7 x -1814305-35 x -362861-109 x -116515-545 x -23303-763 x -16645-3329 x -3815
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 12,700,135, 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 | 12,700,135 | |
| -1 | -12,700,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,700,135.
Example:
1 x 12,700,135 = 12,700,135
and
-1 x -12,700,135 = 12,700,135
Notice both answers equal 12,700,135
With that explanation out of the way, let's continue. Next, we take the number 12,700,135 and divide it by 2:
12,700,135 ÷ 2 = 6,350,067.5
If the quotient is a whole number, then 2 and 6,350,067.5 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 | 12,700,135 | |
| -1 | -12,700,135 |
Now, we try dividing 12,700,135 by 3:
12,700,135 ÷ 3 = 4,233,378.3333
If the quotient is a whole number, then 3 and 4,233,378.3333 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 | 12,700,135 | |
| -1 | -12,700,135 |
Let's try dividing by 4:
12,700,135 ÷ 4 = 3,175,033.75
If the quotient is a whole number, then 4 and 3,175,033.75 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 | 12,700,135 | |
| -1 | 12,700,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 109 | 545 | 763 | 3,329 | 3,815 | 16,645 | 23,303 | 116,515 | 362,861 | 1,814,305 | 2,540,027 | 12,700,135 |
| -1 | -5 | -7 | -35 | -109 | -545 | -763 | -3,329 | -3,815 | -16,645 | -23,303 | -116,515 | -362,861 | -1,814,305 | -2,540,027 | -12,700,135 |
Here are some more numbers to try:
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