A:
Positive:
1 x 1611220917 x 94777719 x 84801183 x 194123323 x 49883601 x 268091411 x 114191577 x 10217
Negative:
-1 x -16112209-17 x -947777-19 x -848011-83 x -194123-323 x -49883-601 x -26809-1411 x -11419-1577 x -10217
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 16,112,209, 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 | 16,112,209 | |
| -1 | -16,112,209 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 16,112,209.
Example:
1 x 16,112,209 = 16,112,209
and
-1 x -16,112,209 = 16,112,209
Notice both answers equal 16,112,209
With that explanation out of the way, let's continue. Next, we take the number 16,112,209 and divide it by 2:
16,112,209 ÷ 2 = 8,056,104.5
If the quotient is a whole number, then 2 and 8,056,104.5 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 | 16,112,209 | |
| -1 | -16,112,209 |
Now, we try dividing 16,112,209 by 3:
16,112,209 ÷ 3 = 5,370,736.3333
If the quotient is a whole number, then 3 and 5,370,736.3333 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 | 16,112,209 | |
| -1 | -16,112,209 |
Let's try dividing by 4:
16,112,209 ÷ 4 = 4,028,052.25
If the quotient is a whole number, then 4 and 4,028,052.25 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 | 16,112,209 | |
| -1 | 16,112,209 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 83 | 323 | 601 | 1,411 | 1,577 | 10,217 | 11,419 | 26,809 | 49,883 | 194,123 | 848,011 | 947,777 | 16,112,209 |
| -1 | -17 | -19 | -83 | -323 | -601 | -1,411 | -1,577 | -10,217 | -11,419 | -26,809 | -49,883 | -194,123 | -848,011 | -947,777 | -16,112,209 |
Here are some more numbers to try:
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