A:
Positive:
1 x 16478155 x 32956313 x 12675565 x 25351101 x 16315251 x 6565505 x 32631255 x 1313
Negative:
-1 x -1647815-5 x -329563-13 x -126755-65 x -25351-101 x -16315-251 x -6565-505 x -3263-1255 x -1313
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 1,647,815, 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 | 1,647,815 | |
| -1 | -1,647,815 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,647,815.
Example:
1 x 1,647,815 = 1,647,815
and
-1 x -1,647,815 = 1,647,815
Notice both answers equal 1,647,815
With that explanation out of the way, let's continue. Next, we take the number 1,647,815 and divide it by 2:
1,647,815 ÷ 2 = 823,907.5
If the quotient is a whole number, then 2 and 823,907.5 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 | 1,647,815 | |
| -1 | -1,647,815 |
Now, we try dividing 1,647,815 by 3:
1,647,815 ÷ 3 = 549,271.6667
If the quotient is a whole number, then 3 and 549,271.6667 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 | 1,647,815 | |
| -1 | -1,647,815 |
Let's try dividing by 4:
1,647,815 ÷ 4 = 411,953.75
If the quotient is a whole number, then 4 and 411,953.75 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 | 1,647,815 | |
| -1 | 1,647,815 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 101 | 251 | 505 | 1,255 | 1,313 | 3,263 | 6,565 | 16,315 | 25,351 | 126,755 | 329,563 | 1,647,815 |
| -1 | -5 | -13 | -65 | -101 | -251 | -505 | -1,255 | -1,313 | -3,263 | -6,565 | -16,315 | -25,351 | -126,755 | -329,563 | -1,647,815 |
Here are some more numbers to try:
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