A:
Positive:
1 x 2421553555 x 4843107113 x 1862733565 x 3725467197 x 1229215985 x 2458432561 x 9455512805 x 18911
Negative:
-1 x -242155355-5 x -48431071-13 x -18627335-65 x -3725467-197 x -1229215-985 x -245843-2561 x -94555-12805 x -18911
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 242,155,355, 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 | 242,155,355 | |
| -1 | -242,155,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 242,155,355.
Example:
1 x 242,155,355 = 242,155,355
and
-1 x -242,155,355 = 242,155,355
Notice both answers equal 242,155,355
With that explanation out of the way, let's continue. Next, we take the number 242,155,355 and divide it by 2:
242,155,355 ÷ 2 = 121,077,677.5
If the quotient is a whole number, then 2 and 121,077,677.5 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 | 242,155,355 | |
| -1 | -242,155,355 |
Now, we try dividing 242,155,355 by 3:
242,155,355 ÷ 3 = 80,718,451.6667
If the quotient is a whole number, then 3 and 80,718,451.6667 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 | 242,155,355 | |
| -1 | -242,155,355 |
Let's try dividing by 4:
242,155,355 ÷ 4 = 60,538,838.75
If the quotient is a whole number, then 4 and 60,538,838.75 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 | 242,155,355 | |
| -1 | 242,155,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 197 | 985 | 2,561 | 12,805 | 18,911 | 94,555 | 245,843 | 1,229,215 | 3,725,467 | 18,627,335 | 48,431,071 | 242,155,355 |
| -1 | -5 | -13 | -65 | -197 | -985 | -2,561 | -12,805 | -18,911 | -94,555 | -245,843 | -1,229,215 | -3,725,467 | -18,627,335 | -48,431,071 | -242,155,355 |
Here are some more numbers to try:
Try the factor calculator