A:
Positive:
1 x 336678111 x 30607119 x 17719989 x 37829181 x 18601209 x 16109979 x 34391691 x 1991
Negative:
-1 x -3366781-11 x -306071-19 x -177199-89 x -37829-181 x -18601-209 x -16109-979 x -3439-1691 x -1991
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 3,366,781, 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 | 3,366,781 | |
| -1 | -3,366,781 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,366,781.
Example:
1 x 3,366,781 = 3,366,781
and
-1 x -3,366,781 = 3,366,781
Notice both answers equal 3,366,781
With that explanation out of the way, let's continue. Next, we take the number 3,366,781 and divide it by 2:
3,366,781 ÷ 2 = 1,683,390.5
If the quotient is a whole number, then 2 and 1,683,390.5 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 | 3,366,781 | |
| -1 | -3,366,781 |
Now, we try dividing 3,366,781 by 3:
3,366,781 ÷ 3 = 1,122,260.3333
If the quotient is a whole number, then 3 and 1,122,260.3333 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 | 3,366,781 | |
| -1 | -3,366,781 |
Let's try dividing by 4:
3,366,781 ÷ 4 = 841,695.25
If the quotient is a whole number, then 4 and 841,695.25 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 | 3,366,781 | |
| -1 | 3,366,781 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 89 | 181 | 209 | 979 | 1,691 | 1,991 | 3,439 | 16,109 | 18,601 | 37,829 | 177,199 | 306,071 | 3,366,781 |
| -1 | -11 | -19 | -89 | -181 | -209 | -979 | -1,691 | -1,991 | -3,439 | -16,109 | -18,601 | -37,829 | -177,199 | -306,071 | -3,366,781 |
Here are some more numbers to try:
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