A:
Positive:
1 x 1625315237 x 2321878911 x 1477559377 x 2110799101 x 1609223707 x 2298891111 x 1462937777 x 20899
Negative:
-1 x -162531523-7 x -23218789-11 x -14775593-77 x -2110799-101 x -1609223-707 x -229889-1111 x -146293-7777 x -20899
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 162,531,523, 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 | 162,531,523 | |
| -1 | -162,531,523 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,531,523.
Example:
1 x 162,531,523 = 162,531,523
and
-1 x -162,531,523 = 162,531,523
Notice both answers equal 162,531,523
With that explanation out of the way, let's continue. Next, we take the number 162,531,523 and divide it by 2:
162,531,523 ÷ 2 = 81,265,761.5
If the quotient is a whole number, then 2 and 81,265,761.5 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 | 162,531,523 | |
| -1 | -162,531,523 |
Now, we try dividing 162,531,523 by 3:
162,531,523 ÷ 3 = 54,177,174.3333
If the quotient is a whole number, then 3 and 54,177,174.3333 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 | 162,531,523 | |
| -1 | -162,531,523 |
Let's try dividing by 4:
162,531,523 ÷ 4 = 40,632,880.75
If the quotient is a whole number, then 4 and 40,632,880.75 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 | 162,531,523 | |
| -1 | 162,531,523 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 101 | 707 | 1,111 | 7,777 | 20,899 | 146,293 | 229,889 | 1,609,223 | 2,110,799 | 14,775,593 | 23,218,789 | 162,531,523 |
| -1 | -7 | -11 | -77 | -101 | -707 | -1,111 | -7,777 | -20,899 | -146,293 | -229,889 | -1,609,223 | -2,110,799 | -14,775,593 | -23,218,789 | -162,531,523 |
Here are some more numbers to try:
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