A:
Positive:
1 x 7858502655 x 15717005329 x 27098285107 x 7344395145 x 5419657535 x 14688793103 x 25325515515 x 50651
Negative:
-1 x -785850265-5 x -157170053-29 x -27098285-107 x -7344395-145 x -5419657-535 x -1468879-3103 x -253255-15515 x -50651
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 785,850,265, 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 | 785,850,265 | |
| -1 | -785,850,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 785,850,265.
Example:
1 x 785,850,265 = 785,850,265
and
-1 x -785,850,265 = 785,850,265
Notice both answers equal 785,850,265
With that explanation out of the way, let's continue. Next, we take the number 785,850,265 and divide it by 2:
785,850,265 ÷ 2 = 392,925,132.5
If the quotient is a whole number, then 2 and 392,925,132.5 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 | 785,850,265 | |
| -1 | -785,850,265 |
Now, we try dividing 785,850,265 by 3:
785,850,265 ÷ 3 = 261,950,088.3333
If the quotient is a whole number, then 3 and 261,950,088.3333 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 | 785,850,265 | |
| -1 | -785,850,265 |
Let's try dividing by 4:
785,850,265 ÷ 4 = 196,462,566.25
If the quotient is a whole number, then 4 and 196,462,566.25 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 | 785,850,265 | |
| -1 | 785,850,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 107 | 145 | 535 | 3,103 | 15,515 | 50,651 | 253,255 | 1,468,879 | 5,419,657 | 7,344,395 | 27,098,285 | 157,170,053 | 785,850,265 |
| -1 | -5 | -29 | -107 | -145 | -535 | -3,103 | -15,515 | -50,651 | -253,255 | -1,468,879 | -5,419,657 | -7,344,395 | -27,098,285 | -157,170,053 | -785,850,265 |
Here are some more numbers to try:
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