A:
Positive:
1 x 1301312655 x 2602625311 x 1183011529 x 448728555 x 2366023121 x 1075465145 x 897457319 x 407935605 x 2150931595 x 815873509 x 370857417 x 17545
Negative:
-1 x -130131265-5 x -26026253-11 x -11830115-29 x -4487285-55 x -2366023-121 x -1075465-145 x -897457-319 x -407935-605 x -215093-1595 x -81587-3509 x -37085-7417 x -17545
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 130,131,265, 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 | 130,131,265 | |
| -1 | -130,131,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,131,265.
Example:
1 x 130,131,265 = 130,131,265
and
-1 x -130,131,265 = 130,131,265
Notice both answers equal 130,131,265
With that explanation out of the way, let's continue. Next, we take the number 130,131,265 and divide it by 2:
130,131,265 ÷ 2 = 65,065,632.5
If the quotient is a whole number, then 2 and 65,065,632.5 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 | 130,131,265 | |
| -1 | -130,131,265 |
Now, we try dividing 130,131,265 by 3:
130,131,265 ÷ 3 = 43,377,088.3333
If the quotient is a whole number, then 3 and 43,377,088.3333 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 | 130,131,265 | |
| -1 | -130,131,265 |
Let's try dividing by 4:
130,131,265 ÷ 4 = 32,532,816.25
If the quotient is a whole number, then 4 and 32,532,816.25 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 | 130,131,265 | |
| -1 | 130,131,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 29 | 55 | 121 | 145 | 319 | 605 | 1,595 | 3,509 | 7,417 | 17,545 | 37,085 | 81,587 | 215,093 | 407,935 | 897,457 | 1,075,465 | 2,366,023 | 4,487,285 | 11,830,115 | 26,026,253 | 130,131,265 |
| -1 | -5 | -11 | -29 | -55 | -121 | -145 | -319 | -605 | -1,595 | -3,509 | -7,417 | -17,545 | -37,085 | -81,587 | -215,093 | -407,935 | -897,457 | -1,075,465 | -2,366,023 | -4,487,285 | -11,830,115 | -26,026,253 | -130,131,265 |
Here are some more numbers to try:
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