A:
Positive:
1 x 2300200217 x 3286000311 x 2091091147 x 489404377 x 2987273329 x 699149517 x 4449133619 x 63559
Negative:
-1 x -230020021-7 x -32860003-11 x -20910911-47 x -4894043-77 x -2987273-329 x -699149-517 x -444913-3619 x -63559
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 230,020,021, 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 | 230,020,021 | |
| -1 | -230,020,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 230,020,021.
Example:
1 x 230,020,021 = 230,020,021
and
-1 x -230,020,021 = 230,020,021
Notice both answers equal 230,020,021
With that explanation out of the way, let's continue. Next, we take the number 230,020,021 and divide it by 2:
230,020,021 ÷ 2 = 115,010,010.5
If the quotient is a whole number, then 2 and 115,010,010.5 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 | 230,020,021 | |
| -1 | -230,020,021 |
Now, we try dividing 230,020,021 by 3:
230,020,021 ÷ 3 = 76,673,340.3333
If the quotient is a whole number, then 3 and 76,673,340.3333 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 | 230,020,021 | |
| -1 | -230,020,021 |
Let's try dividing by 4:
230,020,021 ÷ 4 = 57,505,005.25
If the quotient is a whole number, then 4 and 57,505,005.25 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 | 230,020,021 | |
| -1 | 230,020,021 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 47 | 77 | 329 | 517 | 3,619 | 63,559 | 444,913 | 699,149 | 2,987,273 | 4,894,043 | 20,910,911 | 32,860,003 | 230,020,021 |
| -1 | -7 | -11 | -47 | -77 | -329 | -517 | -3,619 | -63,559 | -444,913 | -699,149 | -2,987,273 | -4,894,043 | -20,910,911 | -32,860,003 | -230,020,021 |
Here are some more numbers to try:
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