A:
Positive:
1 x 16664455 x 33328911 x 15149541 x 4064555 x 30299205 x 8129451 x 3695739 x 2255
Negative:
-1 x -1666445-5 x -333289-11 x -151495-41 x -40645-55 x -30299-205 x -8129-451 x -3695-739 x -2255
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 1,666,445, 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 | 1,666,445 | |
| -1 | -1,666,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,666,445.
Example:
1 x 1,666,445 = 1,666,445
and
-1 x -1,666,445 = 1,666,445
Notice both answers equal 1,666,445
With that explanation out of the way, let's continue. Next, we take the number 1,666,445 and divide it by 2:
1,666,445 ÷ 2 = 833,222.5
If the quotient is a whole number, then 2 and 833,222.5 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 | 1,666,445 | |
| -1 | -1,666,445 |
Now, we try dividing 1,666,445 by 3:
1,666,445 ÷ 3 = 555,481.6667
If the quotient is a whole number, then 3 and 555,481.6667 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 | 1,666,445 | |
| -1 | -1,666,445 |
Let's try dividing by 4:
1,666,445 ÷ 4 = 416,611.25
If the quotient is a whole number, then 4 and 416,611.25 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 | 1,666,445 | |
| -1 | 1,666,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 41 | 55 | 205 | 451 | 739 | 2,255 | 3,695 | 8,129 | 30,299 | 40,645 | 151,495 | 333,289 | 1,666,445 |
| -1 | -5 | -11 | -41 | -55 | -205 | -451 | -739 | -2,255 | -3,695 | -8,129 | -30,299 | -40,645 | -151,495 | -333,289 | -1,666,445 |
Here are some more numbers to try:
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