A:
Positive:
1 x 1623516255 x 3247032525 x 6494065125 x 1298813367 x 4423751835 x 884753539 x 458759175 x 17695
Negative:
-1 x -162351625-5 x -32470325-25 x -6494065-125 x -1298813-367 x -442375-1835 x -88475-3539 x -45875-9175 x -17695
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 162,351,625, 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 | 162,351,625 | |
| -1 | -162,351,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,351,625.
Example:
1 x 162,351,625 = 162,351,625
and
-1 x -162,351,625 = 162,351,625
Notice both answers equal 162,351,625
With that explanation out of the way, let's continue. Next, we take the number 162,351,625 and divide it by 2:
162,351,625 ÷ 2 = 81,175,812.5
If the quotient is a whole number, then 2 and 81,175,812.5 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 | 162,351,625 | |
| -1 | -162,351,625 |
Now, we try dividing 162,351,625 by 3:
162,351,625 ÷ 3 = 54,117,208.3333
If the quotient is a whole number, then 3 and 54,117,208.3333 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 | 162,351,625 | |
| -1 | -162,351,625 |
Let's try dividing by 4:
162,351,625 ÷ 4 = 40,587,906.25
If the quotient is a whole number, then 4 and 40,587,906.25 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 | 162,351,625 | |
| -1 | 162,351,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 367 | 1,835 | 3,539 | 9,175 | 17,695 | 45,875 | 88,475 | 442,375 | 1,298,813 | 6,494,065 | 32,470,325 | 162,351,625 |
| -1 | -5 | -25 | -125 | -367 | -1,835 | -3,539 | -9,175 | -17,695 | -45,875 | -88,475 | -442,375 | -1,298,813 | -6,494,065 | -32,470,325 | -162,351,625 |
Here are some more numbers to try:
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