A:
Positive:
1 x 2310440155 x 4620880329 x 7967035145 x 1593407431 x 5360652155 x 1072133697 x 6249512499 x 18485
Negative:
-1 x -231044015-5 x -46208803-29 x -7967035-145 x -1593407-431 x -536065-2155 x -107213-3697 x -62495-12499 x -18485
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 231,044,015, 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 | 231,044,015 | |
| -1 | -231,044,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 231,044,015.
Example:
1 x 231,044,015 = 231,044,015
and
-1 x -231,044,015 = 231,044,015
Notice both answers equal 231,044,015
With that explanation out of the way, let's continue. Next, we take the number 231,044,015 and divide it by 2:
231,044,015 ÷ 2 = 115,522,007.5
If the quotient is a whole number, then 2 and 115,522,007.5 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 | 231,044,015 | |
| -1 | -231,044,015 |
Now, we try dividing 231,044,015 by 3:
231,044,015 ÷ 3 = 77,014,671.6667
If the quotient is a whole number, then 3 and 77,014,671.6667 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 | 231,044,015 | |
| -1 | -231,044,015 |
Let's try dividing by 4:
231,044,015 ÷ 4 = 57,761,003.75
If the quotient is a whole number, then 4 and 57,761,003.75 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 | 231,044,015 | |
| -1 | 231,044,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 145 | 431 | 2,155 | 3,697 | 12,499 | 18,485 | 62,495 | 107,213 | 536,065 | 1,593,407 | 7,967,035 | 46,208,803 | 231,044,015 |
| -1 | -5 | -29 | -145 | -431 | -2,155 | -3,697 | -12,499 | -18,485 | -62,495 | -107,213 | -536,065 | -1,593,407 | -7,967,035 | -46,208,803 | -231,044,015 |
Here are some more numbers to try:
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