A:
Positive:
1 x 2602477455 x 5204954983 x 3135515151 x 1723495415 x 627103755 x 3446994153 x 6266512533 x 20765
Negative:
-1 x -260247745-5 x -52049549-83 x -3135515-151 x -1723495-415 x -627103-755 x -344699-4153 x -62665-12533 x -20765
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 260,247,745, 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 | 260,247,745 | |
| -1 | -260,247,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 260,247,745.
Example:
1 x 260,247,745 = 260,247,745
and
-1 x -260,247,745 = 260,247,745
Notice both answers equal 260,247,745
With that explanation out of the way, let's continue. Next, we take the number 260,247,745 and divide it by 2:
260,247,745 ÷ 2 = 130,123,872.5
If the quotient is a whole number, then 2 and 130,123,872.5 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 | 260,247,745 | |
| -1 | -260,247,745 |
Now, we try dividing 260,247,745 by 3:
260,247,745 ÷ 3 = 86,749,248.3333
If the quotient is a whole number, then 3 and 86,749,248.3333 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 | 260,247,745 | |
| -1 | -260,247,745 |
Let's try dividing by 4:
260,247,745 ÷ 4 = 65,061,936.25
If the quotient is a whole number, then 4 and 65,061,936.25 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 | 260,247,745 | |
| -1 | 260,247,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 151 | 415 | 755 | 4,153 | 12,533 | 20,765 | 62,665 | 344,699 | 627,103 | 1,723,495 | 3,135,515 | 52,049,549 | 260,247,745 |
| -1 | -5 | -83 | -151 | -415 | -755 | -4,153 | -12,533 | -20,765 | -62,665 | -344,699 | -627,103 | -1,723,495 | -3,135,515 | -52,049,549 | -260,247,745 |
Here are some more numbers to try:
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