A:
Positive:
1 x 13130302911 x 1193663913 x 10100233121 x 1085149143 x 918203169 x 7769411573 x 834731859 x 706316421 x 20449
Negative:
-1 x -131303029-11 x -11936639-13 x -10100233-121 x -1085149-143 x -918203-169 x -776941-1573 x -83473-1859 x -70631-6421 x -20449
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 131,303,029, 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 | 131,303,029 | |
| -1 | -131,303,029 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 131,303,029.
Example:
1 x 131,303,029 = 131,303,029
and
-1 x -131,303,029 = 131,303,029
Notice both answers equal 131,303,029
With that explanation out of the way, let's continue. Next, we take the number 131,303,029 and divide it by 2:
131,303,029 ÷ 2 = 65,651,514.5
If the quotient is a whole number, then 2 and 65,651,514.5 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 | 131,303,029 | |
| -1 | -131,303,029 |
Now, we try dividing 131,303,029 by 3:
131,303,029 ÷ 3 = 43,767,676.3333
If the quotient is a whole number, then 3 and 43,767,676.3333 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 | 131,303,029 | |
| -1 | -131,303,029 |
Let's try dividing by 4:
131,303,029 ÷ 4 = 32,825,757.25
If the quotient is a whole number, then 4 and 32,825,757.25 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 | 131,303,029 | |
| -1 | 131,303,029 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 121 | 143 | 169 | 1,573 | 1,859 | 6,421 | 20,449 | 70,631 | 83,473 | 776,941 | 918,203 | 1,085,149 | 10,100,233 | 11,936,639 | 131,303,029 |
| -1 | -11 | -13 | -121 | -143 | -169 | -1,573 | -1,859 | -6,421 | -20,449 | -70,631 | -83,473 | -776,941 | -918,203 | -1,085,149 | -10,100,233 | -11,936,639 | -131,303,029 |
Here are some more numbers to try:
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