A:
Positive:
1 x 1201610417 x 1716586311 x 1092373113 x 924315777 x 156053391 x 1320451143 x 8402871001 x 120041
Negative:
-1 x -120161041-7 x -17165863-11 x -10923731-13 x -9243157-77 x -1560533-91 x -1320451-143 x -840287-1001 x -120041
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 120,161,041, 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 | 120,161,041 | |
| -1 | -120,161,041 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 120,161,041.
Example:
1 x 120,161,041 = 120,161,041
and
-1 x -120,161,041 = 120,161,041
Notice both answers equal 120,161,041
With that explanation out of the way, let's continue. Next, we take the number 120,161,041 and divide it by 2:
120,161,041 ÷ 2 = 60,080,520.5
If the quotient is a whole number, then 2 and 60,080,520.5 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 | 120,161,041 | |
| -1 | -120,161,041 |
Now, we try dividing 120,161,041 by 3:
120,161,041 ÷ 3 = 40,053,680.3333
If the quotient is a whole number, then 3 and 40,053,680.3333 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 | 120,161,041 | |
| -1 | -120,161,041 |
Let's try dividing by 4:
120,161,041 ÷ 4 = 30,040,260.25
If the quotient is a whole number, then 4 and 30,040,260.25 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 | 120,161,041 | |
| -1 | 120,161,041 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 13 | 77 | 91 | 143 | 1,001 | 120,041 | 840,287 | 1,320,451 | 1,560,533 | 9,243,157 | 10,923,731 | 17,165,863 | 120,161,041 |
| -1 | -7 | -11 | -13 | -77 | -91 | -143 | -1,001 | -120,041 | -840,287 | -1,320,451 | -1,560,533 | -9,243,157 | -10,923,731 | -17,165,863 | -120,161,041 |
Here are some more numbers to try:
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