A:
Positive:
1 x 16660155 x 33320313 x 12815519 x 8768565 x 2563171 x 2346595 x 17537247 x 6745355 x 4693361 x 4615923 x 18051235 x 1349
Negative:
-1 x -1666015-5 x -333203-13 x -128155-19 x -87685-65 x -25631-71 x -23465-95 x -17537-247 x -6745-355 x -4693-361 x -4615-923 x -1805-1235 x -1349
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 1,666,015, 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 | 1,666,015 | |
| -1 | -1,666,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,666,015.
Example:
1 x 1,666,015 = 1,666,015
and
-1 x -1,666,015 = 1,666,015
Notice both answers equal 1,666,015
With that explanation out of the way, let's continue. Next, we take the number 1,666,015 and divide it by 2:
1,666,015 ÷ 2 = 833,007.5
If the quotient is a whole number, then 2 and 833,007.5 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 | 1,666,015 | |
| -1 | -1,666,015 |
Now, we try dividing 1,666,015 by 3:
1,666,015 ÷ 3 = 555,338.3333
If the quotient is a whole number, then 3 and 555,338.3333 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 | 1,666,015 | |
| -1 | -1,666,015 |
Let's try dividing by 4:
1,666,015 ÷ 4 = 416,503.75
If the quotient is a whole number, then 4 and 416,503.75 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 | 1,666,015 | |
| -1 | 1,666,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 65 | 71 | 95 | 247 | 355 | 361 | 923 | 1,235 | 1,349 | 1,805 | 4,615 | 4,693 | 6,745 | 17,537 | 23,465 | 25,631 | 87,685 | 128,155 | 333,203 | 1,666,015 |
| -1 | -5 | -13 | -19 | -65 | -71 | -95 | -247 | -355 | -361 | -923 | -1,235 | -1,349 | -1,805 | -4,615 | -4,693 | -6,745 | -17,537 | -23,465 | -25,631 | -87,685 | -128,155 | -333,203 | -1,666,015 |
Here are some more numbers to try:
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