A:
Positive:
1 x 5205402655 x 1041080537 x 7436289535 x 148725791871 x 2782157949 x 654859355 x 5564313097 x 39745
Negative:
-1 x -520540265-5 x -104108053-7 x -74362895-35 x -14872579-1871 x -278215-7949 x -65485-9355 x -55643-13097 x -39745
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 520,540,265, 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 | 520,540,265 | |
| -1 | -520,540,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 520,540,265.
Example:
1 x 520,540,265 = 520,540,265
and
-1 x -520,540,265 = 520,540,265
Notice both answers equal 520,540,265
With that explanation out of the way, let's continue. Next, we take the number 520,540,265 and divide it by 2:
520,540,265 ÷ 2 = 260,270,132.5
If the quotient is a whole number, then 2 and 260,270,132.5 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 | 520,540,265 | |
| -1 | -520,540,265 |
Now, we try dividing 520,540,265 by 3:
520,540,265 ÷ 3 = 173,513,421.6667
If the quotient is a whole number, then 3 and 173,513,421.6667 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 | 520,540,265 | |
| -1 | -520,540,265 |
Let's try dividing by 4:
520,540,265 ÷ 4 = 130,135,066.25
If the quotient is a whole number, then 4 and 130,135,066.25 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 | 520,540,265 | |
| -1 | 520,540,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 1,871 | 7,949 | 9,355 | 13,097 | 39,745 | 55,643 | 65,485 | 278,215 | 14,872,579 | 74,362,895 | 104,108,053 | 520,540,265 |
| -1 | -5 | -7 | -35 | -1,871 | -7,949 | -9,355 | -13,097 | -39,745 | -55,643 | -65,485 | -278,215 | -14,872,579 | -74,362,895 | -104,108,053 | -520,540,265 |
Here are some more numbers to try:
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