A:
Positive:
1 x 1213255455 x 2426510911 x 1102959519 x 638555555 x 220591995 x 1277111209 x 5805051045 x 116101
Negative:
-1 x -121325545-5 x -24265109-11 x -11029595-19 x -6385555-55 x -2205919-95 x -1277111-209 x -580505-1045 x -116101
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 121,325,545, 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 | 121,325,545 | |
| -1 | -121,325,545 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,325,545.
Example:
1 x 121,325,545 = 121,325,545
and
-1 x -121,325,545 = 121,325,545
Notice both answers equal 121,325,545
With that explanation out of the way, let's continue. Next, we take the number 121,325,545 and divide it by 2:
121,325,545 ÷ 2 = 60,662,772.5
If the quotient is a whole number, then 2 and 60,662,772.5 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 | 121,325,545 | |
| -1 | -121,325,545 |
Now, we try dividing 121,325,545 by 3:
121,325,545 ÷ 3 = 40,441,848.3333
If the quotient is a whole number, then 3 and 40,441,848.3333 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 | 121,325,545 | |
| -1 | -121,325,545 |
Let's try dividing by 4:
121,325,545 ÷ 4 = 30,331,386.25
If the quotient is a whole number, then 4 and 30,331,386.25 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 | 121,325,545 | |
| -1 | 121,325,545 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 19 | 55 | 95 | 209 | 1,045 | 116,101 | 580,505 | 1,277,111 | 2,205,919 | 6,385,555 | 11,029,595 | 24,265,109 | 121,325,545 |
| -1 | -5 | -11 | -19 | -55 | -95 | -209 | -1,045 | -116,101 | -580,505 | -1,277,111 | -2,205,919 | -6,385,555 | -11,029,595 | -24,265,109 | -121,325,545 |
Here are some more numbers to try:
Try the factor calculator