A:
Positive:
1 x 12156360711 x 11051237151 x 805057163 x 745789449 x 2707431661 x 731871793 x 677994939 x 24613
Negative:
-1 x -121563607-11 x -11051237-151 x -805057-163 x -745789-449 x -270743-1661 x -73187-1793 x -67799-4939 x -24613
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 121,563,607, 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 | 121,563,607 | |
| -1 | -121,563,607 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 121,563,607.
Example:
1 x 121,563,607 = 121,563,607
and
-1 x -121,563,607 = 121,563,607
Notice both answers equal 121,563,607
With that explanation out of the way, let's continue. Next, we take the number 121,563,607 and divide it by 2:
121,563,607 ÷ 2 = 60,781,803.5
If the quotient is a whole number, then 2 and 60,781,803.5 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 | 121,563,607 | |
| -1 | -121,563,607 |
Now, we try dividing 121,563,607 by 3:
121,563,607 ÷ 3 = 40,521,202.3333
If the quotient is a whole number, then 3 and 40,521,202.3333 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 | 121,563,607 | |
| -1 | -121,563,607 |
Let's try dividing by 4:
121,563,607 ÷ 4 = 30,390,901.75
If the quotient is a whole number, then 4 and 30,390,901.75 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 | 121,563,607 | |
| -1 | 121,563,607 |
If you did it right, you will end up with this table:
| 1 | 11 | 151 | 163 | 449 | 1,661 | 1,793 | 4,939 | 24,613 | 67,799 | 73,187 | 270,743 | 745,789 | 805,057 | 11,051,237 | 121,563,607 |
| -1 | -11 | -151 | -163 | -449 | -1,661 | -1,793 | -4,939 | -24,613 | -67,799 | -73,187 | -270,743 | -745,789 | -805,057 | -11,051,237 | -121,563,607 |
Here are some more numbers to try:
Try the factor calculator