A:
Positive:
1 x 122661555 x 245323111 x 111510555 x 22302183 x 147785415 x 29557913 x 134352687 x 4565
Negative:
-1 x -12266155-5 x -2453231-11 x -1115105-55 x -223021-83 x -147785-415 x -29557-913 x -13435-2687 x -4565
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 12,266,155, 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 | 12,266,155 | |
| -1 | -12,266,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,266,155.
Example:
1 x 12,266,155 = 12,266,155
and
-1 x -12,266,155 = 12,266,155
Notice both answers equal 12,266,155
With that explanation out of the way, let's continue. Next, we take the number 12,266,155 and divide it by 2:
12,266,155 ÷ 2 = 6,133,077.5
If the quotient is a whole number, then 2 and 6,133,077.5 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 | 12,266,155 | |
| -1 | -12,266,155 |
Now, we try dividing 12,266,155 by 3:
12,266,155 ÷ 3 = 4,088,718.3333
If the quotient is a whole number, then 3 and 4,088,718.3333 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 | 12,266,155 | |
| -1 | -12,266,155 |
Let's try dividing by 4:
12,266,155 ÷ 4 = 3,066,538.75
If the quotient is a whole number, then 4 and 3,066,538.75 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 | 12,266,155 | |
| -1 | 12,266,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 83 | 415 | 913 | 2,687 | 4,565 | 13,435 | 29,557 | 147,785 | 223,021 | 1,115,105 | 2,453,231 | 12,266,155 |
| -1 | -5 | -11 | -55 | -83 | -415 | -913 | -2,687 | -4,565 | -13,435 | -29,557 | -147,785 | -223,021 | -1,115,105 | -2,453,231 | -12,266,155 |
Here are some more numbers to try:
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