A:
Positive:
1 x 1216266711 x 110569717 x 715451187 x 65041193 x 63019337 x 360912123 x 57293281 x 3707
Negative:
-1 x -12162667-11 x -1105697-17 x -715451-187 x -65041-193 x -63019-337 x -36091-2123 x -5729-3281 x -3707
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 12,162,667, 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 | 12,162,667 | |
| -1 | -12,162,667 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,162,667.
Example:
1 x 12,162,667 = 12,162,667
and
-1 x -12,162,667 = 12,162,667
Notice both answers equal 12,162,667
With that explanation out of the way, let's continue. Next, we take the number 12,162,667 and divide it by 2:
12,162,667 ÷ 2 = 6,081,333.5
If the quotient is a whole number, then 2 and 6,081,333.5 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 | 12,162,667 | |
| -1 | -12,162,667 |
Now, we try dividing 12,162,667 by 3:
12,162,667 ÷ 3 = 4,054,222.3333
If the quotient is a whole number, then 3 and 4,054,222.3333 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 | 12,162,667 | |
| -1 | -12,162,667 |
Let's try dividing by 4:
12,162,667 ÷ 4 = 3,040,666.75
If the quotient is a whole number, then 4 and 3,040,666.75 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 | 12,162,667 | |
| -1 | 12,162,667 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 187 | 193 | 337 | 2,123 | 3,281 | 3,707 | 5,729 | 36,091 | 63,019 | 65,041 | 715,451 | 1,105,697 | 12,162,667 |
| -1 | -11 | -17 | -187 | -193 | -337 | -2,123 | -3,281 | -3,707 | -5,729 | -36,091 | -63,019 | -65,041 | -715,451 | -1,105,697 | -12,162,667 |
Here are some more numbers to try:
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