A:
Positive:
1 x 1218169711 x 110742723 x 52963989 x 136873253 x 48149541 x 22517979 x 124432047 x 5951
Negative:
-1 x -12181697-11 x -1107427-23 x -529639-89 x -136873-253 x -48149-541 x -22517-979 x -12443-2047 x -5951
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 12,181,697, 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 | 12,181,697 | |
| -1 | -12,181,697 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,181,697.
Example:
1 x 12,181,697 = 12,181,697
and
-1 x -12,181,697 = 12,181,697
Notice both answers equal 12,181,697
With that explanation out of the way, let's continue. Next, we take the number 12,181,697 and divide it by 2:
12,181,697 ÷ 2 = 6,090,848.5
If the quotient is a whole number, then 2 and 6,090,848.5 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 | 12,181,697 | |
| -1 | -12,181,697 |
Now, we try dividing 12,181,697 by 3:
12,181,697 ÷ 3 = 4,060,565.6667
If the quotient is a whole number, then 3 and 4,060,565.6667 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 | 12,181,697 | |
| -1 | -12,181,697 |
Let's try dividing by 4:
12,181,697 ÷ 4 = 3,045,424.25
If the quotient is a whole number, then 4 and 3,045,424.25 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 | 12,181,697 | |
| -1 | 12,181,697 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 89 | 253 | 541 | 979 | 2,047 | 5,951 | 12,443 | 22,517 | 48,149 | 136,873 | 529,639 | 1,107,427 | 12,181,697 |
| -1 | -11 | -23 | -89 | -253 | -541 | -979 | -2,047 | -5,951 | -12,443 | -22,517 | -48,149 | -136,873 | -529,639 | -1,107,427 | -12,181,697 |
Here are some more numbers to try:
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