A:
Positive:
1 x 1301021155 x 2602042311 x 1182746513 x 1000785555 x 236549365 x 2001571143 x 909805169 x 769835715 x 181961845 x 1539671859 x 699859295 x 13997
Negative:
-1 x -130102115-5 x -26020423-11 x -11827465-13 x -10007855-55 x -2365493-65 x -2001571-143 x -909805-169 x -769835-715 x -181961-845 x -153967-1859 x -69985-9295 x -13997
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 130,102,115, 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 | 130,102,115 | |
| -1 | -130,102,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,102,115.
Example:
1 x 130,102,115 = 130,102,115
and
-1 x -130,102,115 = 130,102,115
Notice both answers equal 130,102,115
With that explanation out of the way, let's continue. Next, we take the number 130,102,115 and divide it by 2:
130,102,115 ÷ 2 = 65,051,057.5
If the quotient is a whole number, then 2 and 65,051,057.5 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 | 130,102,115 | |
| -1 | -130,102,115 |
Now, we try dividing 130,102,115 by 3:
130,102,115 ÷ 3 = 43,367,371.6667
If the quotient is a whole number, then 3 and 43,367,371.6667 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 | 130,102,115 | |
| -1 | -130,102,115 |
Let's try dividing by 4:
130,102,115 ÷ 4 = 32,525,528.75
If the quotient is a whole number, then 4 and 32,525,528.75 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 | 130,102,115 | |
| -1 | 130,102,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 55 | 65 | 143 | 169 | 715 | 845 | 1,859 | 9,295 | 13,997 | 69,985 | 153,967 | 181,961 | 769,835 | 909,805 | 2,001,571 | 2,365,493 | 10,007,855 | 11,827,465 | 26,020,423 | 130,102,115 |
| -1 | -5 | -11 | -13 | -55 | -65 | -143 | -169 | -715 | -845 | -1,859 | -9,295 | -13,997 | -69,985 | -153,967 | -181,961 | -769,835 | -909,805 | -2,001,571 | -2,365,493 | -10,007,855 | -11,827,465 | -26,020,423 | -130,102,115 |
Here are some more numbers to try:
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