A:
Positive:
1 x 2607250877 x 3724644119 x 13722373133 x 19603391097 x 2376711787 x 1459017679 x 3395312509 x 20843
Negative:
-1 x -260725087-7 x -37246441-19 x -13722373-133 x -1960339-1097 x -237671-1787 x -145901-7679 x -33953-12509 x -20843
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 260,725,087, 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 | 260,725,087 | |
| -1 | -260,725,087 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 260,725,087.
Example:
1 x 260,725,087 = 260,725,087
and
-1 x -260,725,087 = 260,725,087
Notice both answers equal 260,725,087
With that explanation out of the way, let's continue. Next, we take the number 260,725,087 and divide it by 2:
260,725,087 ÷ 2 = 130,362,543.5
If the quotient is a whole number, then 2 and 130,362,543.5 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 | 260,725,087 | |
| -1 | -260,725,087 |
Now, we try dividing 260,725,087 by 3:
260,725,087 ÷ 3 = 86,908,362.3333
If the quotient is a whole number, then 3 and 86,908,362.3333 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 | 260,725,087 | |
| -1 | -260,725,087 |
Let's try dividing by 4:
260,725,087 ÷ 4 = 65,181,271.75
If the quotient is a whole number, then 4 and 65,181,271.75 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 | 260,725,087 | |
| -1 | 260,725,087 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 1,097 | 1,787 | 7,679 | 12,509 | 20,843 | 33,953 | 145,901 | 237,671 | 1,960,339 | 13,722,373 | 37,246,441 | 260,725,087 |
| -1 | -7 | -19 | -133 | -1,097 | -1,787 | -7,679 | -12,509 | -20,843 | -33,953 | -145,901 | -237,671 | -1,960,339 | -13,722,373 | -37,246,441 | -260,725,087 |
Here are some more numbers to try:
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