A:
Positive:
1 x 1242152455 x 248430497 x 1774503511 x 1129229535 x 354900749 x 253500555 x 225845977 x 1613185245 x 507001385 x 322637539 x 2304552695 x 46091
Negative:
-1 x -124215245-5 x -24843049-7 x -17745035-11 x -11292295-35 x -3549007-49 x -2535005-55 x -2258459-77 x -1613185-245 x -507001-385 x -322637-539 x -230455-2695 x -46091
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 124,215,245, 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 | 124,215,245 | |
| -1 | -124,215,245 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,215,245.
Example:
1 x 124,215,245 = 124,215,245
and
-1 x -124,215,245 = 124,215,245
Notice both answers equal 124,215,245
With that explanation out of the way, let's continue. Next, we take the number 124,215,245 and divide it by 2:
124,215,245 ÷ 2 = 62,107,622.5
If the quotient is a whole number, then 2 and 62,107,622.5 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 | 124,215,245 | |
| -1 | -124,215,245 |
Now, we try dividing 124,215,245 by 3:
124,215,245 ÷ 3 = 41,405,081.6667
If the quotient is a whole number, then 3 and 41,405,081.6667 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 | 124,215,245 | |
| -1 | -124,215,245 |
Let's try dividing by 4:
124,215,245 ÷ 4 = 31,053,811.25
If the quotient is a whole number, then 4 and 31,053,811.25 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 | 124,215,245 | |
| -1 | 124,215,245 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 49 | 55 | 77 | 245 | 385 | 539 | 2,695 | 46,091 | 230,455 | 322,637 | 507,001 | 1,613,185 | 2,258,459 | 2,535,005 | 3,549,007 | 11,292,295 | 17,745,035 | 24,843,049 | 124,215,245 |
| -1 | -5 | -7 | -11 | -35 | -49 | -55 | -77 | -245 | -385 | -539 | -2,695 | -46,091 | -230,455 | -322,637 | -507,001 | -1,613,185 | -2,258,459 | -2,535,005 | -3,549,007 | -11,292,295 | -17,745,035 | -24,843,049 | -124,215,245 |
Here are some more numbers to try:
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