A:
Positive:
1 x 1620336255 x 3240672513 x 1246412525 x 648134565 x 2492825125 x 1296269325 x 4985651625 x 99713
Negative:
-1 x -162033625-5 x -32406725-13 x -12464125-25 x -6481345-65 x -2492825-125 x -1296269-325 x -498565-1625 x -99713
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 162,033,625, 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 | 162,033,625 | |
| -1 | -162,033,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,033,625.
Example:
1 x 162,033,625 = 162,033,625
and
-1 x -162,033,625 = 162,033,625
Notice both answers equal 162,033,625
With that explanation out of the way, let's continue. Next, we take the number 162,033,625 and divide it by 2:
162,033,625 ÷ 2 = 81,016,812.5
If the quotient is a whole number, then 2 and 81,016,812.5 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 | 162,033,625 | |
| -1 | -162,033,625 |
Now, we try dividing 162,033,625 by 3:
162,033,625 ÷ 3 = 54,011,208.3333
If the quotient is a whole number, then 3 and 54,011,208.3333 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 | 162,033,625 | |
| -1 | -162,033,625 |
Let's try dividing by 4:
162,033,625 ÷ 4 = 40,508,406.25
If the quotient is a whole number, then 4 and 40,508,406.25 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 | 162,033,625 | |
| -1 | 162,033,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 125 | 325 | 1,625 | 99,713 | 498,565 | 1,296,269 | 2,492,825 | 6,481,345 | 12,464,125 | 32,406,725 | 162,033,625 |
| -1 | -5 | -13 | -25 | -65 | -125 | -325 | -1,625 | -99,713 | -498,565 | -1,296,269 | -2,492,825 | -6,481,345 | -12,464,125 | -32,406,725 | -162,033,625 |
Here are some more numbers to try:
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