A:
Positive:
1 x 1632402317 x 2332003311 x 1484002177 x 2120003659 x 2477093217 x 507434613 x 353877249 x 22519
Negative:
-1 x -163240231-7 x -23320033-11 x -14840021-77 x -2120003-659 x -247709-3217 x -50743-4613 x -35387-7249 x -22519
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 163,240,231, 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 | 163,240,231 | |
| -1 | -163,240,231 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,240,231.
Example:
1 x 163,240,231 = 163,240,231
and
-1 x -163,240,231 = 163,240,231
Notice both answers equal 163,240,231
With that explanation out of the way, let's continue. Next, we take the number 163,240,231 and divide it by 2:
163,240,231 ÷ 2 = 81,620,115.5
If the quotient is a whole number, then 2 and 81,620,115.5 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 | 163,240,231 | |
| -1 | -163,240,231 |
Now, we try dividing 163,240,231 by 3:
163,240,231 ÷ 3 = 54,413,410.3333
If the quotient is a whole number, then 3 and 54,413,410.3333 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 | 163,240,231 | |
| -1 | -163,240,231 |
Let's try dividing by 4:
163,240,231 ÷ 4 = 40,810,057.75
If the quotient is a whole number, then 4 and 40,810,057.75 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 | 163,240,231 | |
| -1 | 163,240,231 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 659 | 3,217 | 4,613 | 7,249 | 22,519 | 35,387 | 50,743 | 247,709 | 2,120,003 | 14,840,021 | 23,320,033 | 163,240,231 |
| -1 | -7 | -11 | -77 | -659 | -3,217 | -4,613 | -7,249 | -22,519 | -35,387 | -50,743 | -247,709 | -2,120,003 | -14,840,021 | -23,320,033 | -163,240,231 |
Here are some more numbers to try:
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