A:
Positive:
1 x 2430445155 x 486089037 x 3472064535 x 694412941 x 5927915205 x 1185583287 x 8468451435 x 169369
Negative:
-1 x -243044515-5 x -48608903-7 x -34720645-35 x -6944129-41 x -5927915-205 x -1185583-287 x -846845-1435 x -169369
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 243,044,515, 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 | 243,044,515 | |
| -1 | -243,044,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 243,044,515.
Example:
1 x 243,044,515 = 243,044,515
and
-1 x -243,044,515 = 243,044,515
Notice both answers equal 243,044,515
With that explanation out of the way, let's continue. Next, we take the number 243,044,515 and divide it by 2:
243,044,515 ÷ 2 = 121,522,257.5
If the quotient is a whole number, then 2 and 121,522,257.5 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 | 243,044,515 | |
| -1 | -243,044,515 |
Now, we try dividing 243,044,515 by 3:
243,044,515 ÷ 3 = 81,014,838.3333
If the quotient is a whole number, then 3 and 81,014,838.3333 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 | 243,044,515 | |
| -1 | -243,044,515 |
Let's try dividing by 4:
243,044,515 ÷ 4 = 60,761,128.75
If the quotient is a whole number, then 4 and 60,761,128.75 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 | 243,044,515 | |
| -1 | 243,044,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 169,369 | 846,845 | 1,185,583 | 5,927,915 | 6,944,129 | 34,720,645 | 48,608,903 | 243,044,515 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -169,369 | -846,845 | -1,185,583 | -5,927,915 | -6,944,129 | -34,720,645 | -48,608,903 | -243,044,515 |
Here are some more numbers to try:
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