A:
Positive:
1 x 1242101355 x 248420277 x 1774430535 x 35488611493 x 831952377 x 522557465 x 1663910451 x 11885
Negative:
-1 x -124210135-5 x -24842027-7 x -17744305-35 x -3548861-1493 x -83195-2377 x -52255-7465 x -16639-10451 x -11885
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 124,210,135, 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 | 124,210,135 | |
| -1 | -124,210,135 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,210,135.
Example:
1 x 124,210,135 = 124,210,135
and
-1 x -124,210,135 = 124,210,135
Notice both answers equal 124,210,135
With that explanation out of the way, let's continue. Next, we take the number 124,210,135 and divide it by 2:
124,210,135 ÷ 2 = 62,105,067.5
If the quotient is a whole number, then 2 and 62,105,067.5 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 | 124,210,135 | |
| -1 | -124,210,135 |
Now, we try dividing 124,210,135 by 3:
124,210,135 ÷ 3 = 41,403,378.3333
If the quotient is a whole number, then 3 and 41,403,378.3333 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 | 124,210,135 | |
| -1 | -124,210,135 |
Let's try dividing by 4:
124,210,135 ÷ 4 = 31,052,533.75
If the quotient is a whole number, then 4 and 31,052,533.75 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 | 124,210,135 | |
| -1 | 124,210,135 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,493 | 2,377 | 7,465 | 10,451 | 11,885 | 16,639 | 52,255 | 83,195 | 3,548,861 | 17,744,305 | 24,842,027 | 124,210,135 |
| -1 | -5 | -7 | -35 | -1,493 | -2,377 | -7,465 | -10,451 | -11,885 | -16,639 | -52,255 | -83,195 | -3,548,861 | -17,744,305 | -24,842,027 | -124,210,135 |
Here are some more numbers to try:
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