A:
Positive:
1 x 2607155655 x 5214311311 x 2370141555 x 4740283937 x 2782454685 x 556495059 x 5153510307 x 25295
Negative:
-1 x -260715565-5 x -52143113-11 x -23701415-55 x -4740283-937 x -278245-4685 x -55649-5059 x -51535-10307 x -25295
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 260,715,565, 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 | 260,715,565 | |
| -1 | -260,715,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 260,715,565.
Example:
1 x 260,715,565 = 260,715,565
and
-1 x -260,715,565 = 260,715,565
Notice both answers equal 260,715,565
With that explanation out of the way, let's continue. Next, we take the number 260,715,565 and divide it by 2:
260,715,565 ÷ 2 = 130,357,782.5
If the quotient is a whole number, then 2 and 130,357,782.5 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 | 260,715,565 | |
| -1 | -260,715,565 |
Now, we try dividing 260,715,565 by 3:
260,715,565 ÷ 3 = 86,905,188.3333
If the quotient is a whole number, then 3 and 86,905,188.3333 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 | 260,715,565 | |
| -1 | -260,715,565 |
Let's try dividing by 4:
260,715,565 ÷ 4 = 65,178,891.25
If the quotient is a whole number, then 4 and 65,178,891.25 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 | 260,715,565 | |
| -1 | 260,715,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 937 | 4,685 | 5,059 | 10,307 | 25,295 | 51,535 | 55,649 | 278,245 | 4,740,283 | 23,701,415 | 52,143,113 | 260,715,565 |
| -1 | -5 | -11 | -55 | -937 | -4,685 | -5,059 | -10,307 | -25,295 | -51,535 | -55,649 | -278,245 | -4,740,283 | -23,701,415 | -52,143,113 | -260,715,565 |
Here are some more numbers to try:
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