A:
Positive:
1 x 121637655 x 243275353 x 229505197 x 61745233 x 52205265 x 45901985 x 123491165 x 10441
Negative:
-1 x -12163765-5 x -2432753-53 x -229505-197 x -61745-233 x -52205-265 x -45901-985 x -12349-1165 x -10441
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 12,163,765, 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 | 12,163,765 | |
| -1 | -12,163,765 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,163,765.
Example:
1 x 12,163,765 = 12,163,765
and
-1 x -12,163,765 = 12,163,765
Notice both answers equal 12,163,765
With that explanation out of the way, let's continue. Next, we take the number 12,163,765 and divide it by 2:
12,163,765 ÷ 2 = 6,081,882.5
If the quotient is a whole number, then 2 and 6,081,882.5 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 | 12,163,765 | |
| -1 | -12,163,765 |
Now, we try dividing 12,163,765 by 3:
12,163,765 ÷ 3 = 4,054,588.3333
If the quotient is a whole number, then 3 and 4,054,588.3333 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 | 12,163,765 | |
| -1 | -12,163,765 |
Let's try dividing by 4:
12,163,765 ÷ 4 = 3,040,941.25
If the quotient is a whole number, then 4 and 3,040,941.25 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 | 12,163,765 | |
| -1 | 12,163,765 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 197 | 233 | 265 | 985 | 1,165 | 10,441 | 12,349 | 45,901 | 52,205 | 61,745 | 229,505 | 2,432,753 | 12,163,765 |
| -1 | -5 | -53 | -197 | -233 | -265 | -985 | -1,165 | -10,441 | -12,349 | -45,901 | -52,205 | -61,745 | -229,505 | -2,432,753 | -12,163,765 |
Here are some more numbers to try:
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