A:
Positive:
1 x 1210313237 x 1729018949 x 2470027257 x 470939343 x 3528611373 x 881511799 x 672779611 x 12593
Negative:
-1 x -121031323-7 x -17290189-49 x -2470027-257 x -470939-343 x -352861-1373 x -88151-1799 x -67277-9611 x -12593
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 121,031,323, 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 | 121,031,323 | |
| -1 | -121,031,323 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,031,323.
Example:
1 x 121,031,323 = 121,031,323
and
-1 x -121,031,323 = 121,031,323
Notice both answers equal 121,031,323
With that explanation out of the way, let's continue. Next, we take the number 121,031,323 and divide it by 2:
121,031,323 ÷ 2 = 60,515,661.5
If the quotient is a whole number, then 2 and 60,515,661.5 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 | 121,031,323 | |
| -1 | -121,031,323 |
Now, we try dividing 121,031,323 by 3:
121,031,323 ÷ 3 = 40,343,774.3333
If the quotient is a whole number, then 3 and 40,343,774.3333 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 | 121,031,323 | |
| -1 | -121,031,323 |
Let's try dividing by 4:
121,031,323 ÷ 4 = 30,257,830.75
If the quotient is a whole number, then 4 and 30,257,830.75 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 | 121,031,323 | |
| -1 | 121,031,323 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 257 | 343 | 1,373 | 1,799 | 9,611 | 12,593 | 67,277 | 88,151 | 352,861 | 470,939 | 2,470,027 | 17,290,189 | 121,031,323 |
| -1 | -7 | -49 | -257 | -343 | -1,373 | -1,799 | -9,611 | -12,593 | -67,277 | -88,151 | -352,861 | -470,939 | -2,470,027 | -17,290,189 | -121,031,323 |
Here are some more numbers to try:
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