A:
Positive:
1 x 12116353711 x 1101486729 x 417805367 x 1808411319 x 379823737 x 1644011943 x 623595669 x 21373
Negative:
-1 x -121163537-11 x -11014867-29 x -4178053-67 x -1808411-319 x -379823-737 x -164401-1943 x -62359-5669 x -21373
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 121,163,537, 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 | 121,163,537 | |
| -1 | -121,163,537 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,163,537.
Example:
1 x 121,163,537 = 121,163,537
and
-1 x -121,163,537 = 121,163,537
Notice both answers equal 121,163,537
With that explanation out of the way, let's continue. Next, we take the number 121,163,537 and divide it by 2:
121,163,537 ÷ 2 = 60,581,768.5
If the quotient is a whole number, then 2 and 60,581,768.5 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 | 121,163,537 | |
| -1 | -121,163,537 |
Now, we try dividing 121,163,537 by 3:
121,163,537 ÷ 3 = 40,387,845.6667
If the quotient is a whole number, then 3 and 40,387,845.6667 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 | 121,163,537 | |
| -1 | -121,163,537 |
Let's try dividing by 4:
121,163,537 ÷ 4 = 30,290,884.25
If the quotient is a whole number, then 4 and 30,290,884.25 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 | 121,163,537 | |
| -1 | 121,163,537 |
If you did it right, you will end up with this table:
| 1 | 11 | 29 | 67 | 319 | 737 | 1,943 | 5,669 | 21,373 | 62,359 | 164,401 | 379,823 | 1,808,411 | 4,178,053 | 11,014,867 | 121,163,537 |
| -1 | -11 | -29 | -67 | -319 | -737 | -1,943 | -5,669 | -21,373 | -62,359 | -164,401 | -379,823 | -1,808,411 | -4,178,053 | -11,014,867 | -121,163,537 |
Here are some more numbers to try:
Try the factor calculator