A:
Positive:
1 x 8456204655 x 169124093107 x 7902995535 x 15805991103 x 7666551433 x 5901055515 x 1533317165 x 118021
Negative:
-1 x -845620465-5 x -169124093-107 x -7902995-535 x -1580599-1103 x -766655-1433 x -590105-5515 x -153331-7165 x -118021
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 845,620,465, 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 | 845,620,465 | |
| -1 | -845,620,465 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 845,620,465.
Example:
1 x 845,620,465 = 845,620,465
and
-1 x -845,620,465 = 845,620,465
Notice both answers equal 845,620,465
With that explanation out of the way, let's continue. Next, we take the number 845,620,465 and divide it by 2:
845,620,465 ÷ 2 = 422,810,232.5
If the quotient is a whole number, then 2 and 422,810,232.5 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 | 845,620,465 | |
| -1 | -845,620,465 |
Now, we try dividing 845,620,465 by 3:
845,620,465 ÷ 3 = 281,873,488.3333
If the quotient is a whole number, then 3 and 281,873,488.3333 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 | 845,620,465 | |
| -1 | -845,620,465 |
Let's try dividing by 4:
845,620,465 ÷ 4 = 211,405,116.25
If the quotient is a whole number, then 4 and 211,405,116.25 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 | 845,620,465 | |
| -1 | 845,620,465 |
If you did it right, you will end up with this table:
| 1 | 5 | 107 | 535 | 1,103 | 1,433 | 5,515 | 7,165 | 118,021 | 153,331 | 590,105 | 766,655 | 1,580,599 | 7,902,995 | 169,124,093 | 845,620,465 |
| -1 | -5 | -107 | -535 | -1,103 | -1,433 | -5,515 | -7,165 | -118,021 | -153,331 | -590,105 | -766,655 | -1,580,599 | -7,902,995 | -169,124,093 | -845,620,465 |
Here are some more numbers to try:
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