A:
Positive:
1 x 1240130155 x 248026037 x 1771614535 x 354322979 x 1569785395 x 313957553 x 2242552765 x 44851
Negative:
-1 x -124013015-5 x -24802603-7 x -17716145-35 x -3543229-79 x -1569785-395 x -313957-553 x -224255-2765 x -44851
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 124,013,015, 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 | 124,013,015 | |
| -1 | -124,013,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,013,015.
Example:
1 x 124,013,015 = 124,013,015
and
-1 x -124,013,015 = 124,013,015
Notice both answers equal 124,013,015
With that explanation out of the way, let's continue. Next, we take the number 124,013,015 and divide it by 2:
124,013,015 ÷ 2 = 62,006,507.5
If the quotient is a whole number, then 2 and 62,006,507.5 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 | 124,013,015 | |
| -1 | -124,013,015 |
Now, we try dividing 124,013,015 by 3:
124,013,015 ÷ 3 = 41,337,671.6667
If the quotient is a whole number, then 3 and 41,337,671.6667 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 | 124,013,015 | |
| -1 | -124,013,015 |
Let's try dividing by 4:
124,013,015 ÷ 4 = 31,003,253.75
If the quotient is a whole number, then 4 and 31,003,253.75 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 | 124,013,015 | |
| -1 | 124,013,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 79 | 395 | 553 | 2,765 | 44,851 | 224,255 | 313,957 | 1,569,785 | 3,543,229 | 17,716,145 | 24,802,603 | 124,013,015 |
| -1 | -5 | -7 | -35 | -79 | -395 | -553 | -2,765 | -44,851 | -224,255 | -313,957 | -1,569,785 | -3,543,229 | -17,716,145 | -24,802,603 | -124,013,015 |
Here are some more numbers to try:
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