A:
Positive:
1 x 13022011917 x 766000731 x 4200649103 x 1264273527 x 2470971751 x 743692399 x 542813193 x 40783
Negative:
-1 x -130220119-17 x -7660007-31 x -4200649-103 x -1264273-527 x -247097-1751 x -74369-2399 x -54281-3193 x -40783
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 130,220,119, 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 | 130,220,119 | |
| -1 | -130,220,119 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,220,119.
Example:
1 x 130,220,119 = 130,220,119
and
-1 x -130,220,119 = 130,220,119
Notice both answers equal 130,220,119
With that explanation out of the way, let's continue. Next, we take the number 130,220,119 and divide it by 2:
130,220,119 ÷ 2 = 65,110,059.5
If the quotient is a whole number, then 2 and 65,110,059.5 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 | 130,220,119 | |
| -1 | -130,220,119 |
Now, we try dividing 130,220,119 by 3:
130,220,119 ÷ 3 = 43,406,706.3333
If the quotient is a whole number, then 3 and 43,406,706.3333 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 | 130,220,119 | |
| -1 | -130,220,119 |
Let's try dividing by 4:
130,220,119 ÷ 4 = 32,555,029.75
If the quotient is a whole number, then 4 and 32,555,029.75 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 | 130,220,119 | |
| -1 | 130,220,119 |
If you did it right, you will end up with this table:
| 1 | 17 | 31 | 103 | 527 | 1,751 | 2,399 | 3,193 | 40,783 | 54,281 | 74,369 | 247,097 | 1,264,273 | 4,200,649 | 7,660,007 | 130,220,119 |
| -1 | -17 | -31 | -103 | -527 | -1,751 | -2,399 | -3,193 | -40,783 | -54,281 | -74,369 | -247,097 | -1,264,273 | -4,200,649 | -7,660,007 | -130,220,119 |
Here are some more numbers to try:
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