A:
Positive:
1 x 1623362097 x 2319088719 x 8544011133 x 1220573239 x 6792311673 x 970334541 x 357495107 x 31787
Negative:
-1 x -162336209-7 x -23190887-19 x -8544011-133 x -1220573-239 x -679231-1673 x -97033-4541 x -35749-5107 x -31787
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 162,336,209, 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 | 162,336,209 | |
| -1 | -162,336,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,336,209.
Example:
1 x 162,336,209 = 162,336,209
and
-1 x -162,336,209 = 162,336,209
Notice both answers equal 162,336,209
With that explanation out of the way, let's continue. Next, we take the number 162,336,209 and divide it by 2:
162,336,209 ÷ 2 = 81,168,104.5
If the quotient is a whole number, then 2 and 81,168,104.5 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 | 162,336,209 | |
| -1 | -162,336,209 |
Now, we try dividing 162,336,209 by 3:
162,336,209 ÷ 3 = 54,112,069.6667
If the quotient is a whole number, then 3 and 54,112,069.6667 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 | 162,336,209 | |
| -1 | -162,336,209 |
Let's try dividing by 4:
162,336,209 ÷ 4 = 40,584,052.25
If the quotient is a whole number, then 4 and 40,584,052.25 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 | 162,336,209 | |
| -1 | 162,336,209 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 239 | 1,673 | 4,541 | 5,107 | 31,787 | 35,749 | 97,033 | 679,231 | 1,220,573 | 8,544,011 | 23,190,887 | 162,336,209 |
| -1 | -7 | -19 | -133 | -239 | -1,673 | -4,541 | -5,107 | -31,787 | -35,749 | -97,033 | -679,231 | -1,220,573 | -8,544,011 | -23,190,887 | -162,336,209 |
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