A:
Positive:
1 x 1244021597 x 1777173741 x 3034199107 x 1162637287 x 433457749 x 1660914051 x 307094387 x 28357
Negative:
-1 x -124402159-7 x -17771737-41 x -3034199-107 x -1162637-287 x -433457-749 x -166091-4051 x -30709-4387 x -28357
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 124,402,159, 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 | 124,402,159 | |
| -1 | -124,402,159 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 124,402,159.
Example:
1 x 124,402,159 = 124,402,159
and
-1 x -124,402,159 = 124,402,159
Notice both answers equal 124,402,159
With that explanation out of the way, let's continue. Next, we take the number 124,402,159 and divide it by 2:
124,402,159 ÷ 2 = 62,201,079.5
If the quotient is a whole number, then 2 and 62,201,079.5 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 | 124,402,159 | |
| -1 | -124,402,159 |
Now, we try dividing 124,402,159 by 3:
124,402,159 ÷ 3 = 41,467,386.3333
If the quotient is a whole number, then 3 and 41,467,386.3333 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 | 124,402,159 | |
| -1 | -124,402,159 |
Let's try dividing by 4:
124,402,159 ÷ 4 = 31,100,539.75
If the quotient is a whole number, then 4 and 31,100,539.75 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 | 124,402,159 | |
| -1 | 124,402,159 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 107 | 287 | 749 | 4,051 | 4,387 | 28,357 | 30,709 | 166,091 | 433,457 | 1,162,637 | 3,034,199 | 17,771,737 | 124,402,159 |
| -1 | -7 | -41 | -107 | -287 | -749 | -4,051 | -4,387 | -28,357 | -30,709 | -166,091 | -433,457 | -1,162,637 | -3,034,199 | -17,771,737 | -124,402,159 |
Here are some more numbers to try:
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