A:
Positive:
1 x 1302310317 x 1860443331 x 420100147 x 2770873113 x 1152487217 x 600143329 x 395839791 x 1646411457 x 893833503 x 371775311 x 2452110199 x 12769
Negative:
-1 x -130231031-7 x -18604433-31 x -4201001-47 x -2770873-113 x -1152487-217 x -600143-329 x -395839-791 x -164641-1457 x -89383-3503 x -37177-5311 x -24521-10199 x -12769
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 130,231,031, 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 | 130,231,031 | |
| -1 | -130,231,031 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,231,031.
Example:
1 x 130,231,031 = 130,231,031
and
-1 x -130,231,031 = 130,231,031
Notice both answers equal 130,231,031
With that explanation out of the way, let's continue. Next, we take the number 130,231,031 and divide it by 2:
130,231,031 ÷ 2 = 65,115,515.5
If the quotient is a whole number, then 2 and 65,115,515.5 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 | 130,231,031 | |
| -1 | -130,231,031 |
Now, we try dividing 130,231,031 by 3:
130,231,031 ÷ 3 = 43,410,343.6667
If the quotient is a whole number, then 3 and 43,410,343.6667 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 | 130,231,031 | |
| -1 | -130,231,031 |
Let's try dividing by 4:
130,231,031 ÷ 4 = 32,557,757.75
If the quotient is a whole number, then 4 and 32,557,757.75 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 | 130,231,031 | |
| -1 | 130,231,031 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 47 | 113 | 217 | 329 | 791 | 1,457 | 3,503 | 5,311 | 10,199 | 12,769 | 24,521 | 37,177 | 89,383 | 164,641 | 395,839 | 600,143 | 1,152,487 | 2,770,873 | 4,201,001 | 18,604,433 | 130,231,031 |
| -1 | -7 | -31 | -47 | -113 | -217 | -329 | -791 | -1,457 | -3,503 | -5,311 | -10,199 | -12,769 | -24,521 | -37,177 | -89,383 | -164,641 | -395,839 | -600,143 | -1,152,487 | -2,770,873 | -4,201,001 | -18,604,433 | -130,231,031 |
Here are some more numbers to try:
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