A:
Positive:
1 x 1623545055 x 3247090117 x 955026585 x 1910053593 x 2737852965 x 547573221 x 5040510081 x 16105
Negative:
-1 x -162354505-5 x -32470901-17 x -9550265-85 x -1910053-593 x -273785-2965 x -54757-3221 x -50405-10081 x -16105
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 162,354,505, 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 | 162,354,505 | |
| -1 | -162,354,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,354,505.
Example:
1 x 162,354,505 = 162,354,505
and
-1 x -162,354,505 = 162,354,505
Notice both answers equal 162,354,505
With that explanation out of the way, let's continue. Next, we take the number 162,354,505 and divide it by 2:
162,354,505 ÷ 2 = 81,177,252.5
If the quotient is a whole number, then 2 and 81,177,252.5 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 | 162,354,505 | |
| -1 | -162,354,505 |
Now, we try dividing 162,354,505 by 3:
162,354,505 ÷ 3 = 54,118,168.3333
If the quotient is a whole number, then 3 and 54,118,168.3333 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 | 162,354,505 | |
| -1 | -162,354,505 |
Let's try dividing by 4:
162,354,505 ÷ 4 = 40,588,626.25
If the quotient is a whole number, then 4 and 40,588,626.25 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 | 162,354,505 | |
| -1 | 162,354,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 593 | 2,965 | 3,221 | 10,081 | 16,105 | 50,405 | 54,757 | 273,785 | 1,910,053 | 9,550,265 | 32,470,901 | 162,354,505 |
| -1 | -5 | -17 | -85 | -593 | -2,965 | -3,221 | -10,081 | -16,105 | -50,405 | -54,757 | -273,785 | -1,910,053 | -9,550,265 | -32,470,901 | -162,354,505 |
Here are some more numbers to try:
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