A:
Positive:
1 x 2633226655 x 5266453361 x 4316765305 x 863353401 x 6566652005 x 1313332153 x 12230510765 x 24461
Negative:
-1 x -263322665-5 x -52664533-61 x -4316765-305 x -863353-401 x -656665-2005 x -131333-2153 x -122305-10765 x -24461
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 263,322,665, 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 | 263,322,665 | |
| -1 | -263,322,665 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 263,322,665.
Example:
1 x 263,322,665 = 263,322,665
and
-1 x -263,322,665 = 263,322,665
Notice both answers equal 263,322,665
With that explanation out of the way, let's continue. Next, we take the number 263,322,665 and divide it by 2:
263,322,665 ÷ 2 = 131,661,332.5
If the quotient is a whole number, then 2 and 131,661,332.5 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 | 263,322,665 | |
| -1 | -263,322,665 |
Now, we try dividing 263,322,665 by 3:
263,322,665 ÷ 3 = 87,774,221.6667
If the quotient is a whole number, then 3 and 87,774,221.6667 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 | 263,322,665 | |
| -1 | -263,322,665 |
Let's try dividing by 4:
263,322,665 ÷ 4 = 65,830,666.25
If the quotient is a whole number, then 4 and 65,830,666.25 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 | 263,322,665 | |
| -1 | 263,322,665 |
If you did it right, you will end up with this table:
| 1 | 5 | 61 | 305 | 401 | 2,005 | 2,153 | 10,765 | 24,461 | 122,305 | 131,333 | 656,665 | 863,353 | 4,316,765 | 52,664,533 | 263,322,665 |
| -1 | -5 | -61 | -305 | -401 | -2,005 | -2,153 | -10,765 | -24,461 | -122,305 | -131,333 | -656,665 | -863,353 | -4,316,765 | -52,664,533 | -263,322,665 |
Here are some more numbers to try:
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