A:
Positive:
1 x 2306501455 x 4613002911 x 2096819555 x 4193639373 x 6183651865 x 1236734103 x 5621511243 x 20515
Negative:
-1 x -230650145-5 x -46130029-11 x -20968195-55 x -4193639-373 x -618365-1865 x -123673-4103 x -56215-11243 x -20515
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 230,650,145, 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 | 230,650,145 | |
| -1 | -230,650,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 230,650,145.
Example:
1 x 230,650,145 = 230,650,145
and
-1 x -230,650,145 = 230,650,145
Notice both answers equal 230,650,145
With that explanation out of the way, let's continue. Next, we take the number 230,650,145 and divide it by 2:
230,650,145 ÷ 2 = 115,325,072.5
If the quotient is a whole number, then 2 and 115,325,072.5 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 | 230,650,145 | |
| -1 | -230,650,145 |
Now, we try dividing 230,650,145 by 3:
230,650,145 ÷ 3 = 76,883,381.6667
If the quotient is a whole number, then 3 and 76,883,381.6667 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 | 230,650,145 | |
| -1 | -230,650,145 |
Let's try dividing by 4:
230,650,145 ÷ 4 = 57,662,536.25
If the quotient is a whole number, then 4 and 57,662,536.25 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 | 230,650,145 | |
| -1 | 230,650,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 373 | 1,865 | 4,103 | 11,243 | 20,515 | 56,215 | 123,673 | 618,365 | 4,193,639 | 20,968,195 | 46,130,029 | 230,650,145 |
| -1 | -5 | -11 | -55 | -373 | -1,865 | -4,103 | -11,243 | -20,515 | -56,215 | -123,673 | -618,365 | -4,193,639 | -20,968,195 | -46,130,029 | -230,650,145 |
Here are some more numbers to try:
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