A:
Positive:
1 x 16319155 x 32638317 x 9599573 x 2235585 x 19199263 x 6205365 x 44711241 x 1315
Negative:
-1 x -1631915-5 x -326383-17 x -95995-73 x -22355-85 x -19199-263 x -6205-365 x -4471-1241 x -1315
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 1,631,915, 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 | 1,631,915 | |
| -1 | -1,631,915 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,631,915.
Example:
1 x 1,631,915 = 1,631,915
and
-1 x -1,631,915 = 1,631,915
Notice both answers equal 1,631,915
With that explanation out of the way, let's continue. Next, we take the number 1,631,915 and divide it by 2:
1,631,915 ÷ 2 = 815,957.5
If the quotient is a whole number, then 2 and 815,957.5 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 | 1,631,915 | |
| -1 | -1,631,915 |
Now, we try dividing 1,631,915 by 3:
1,631,915 ÷ 3 = 543,971.6667
If the quotient is a whole number, then 3 and 543,971.6667 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 | 1,631,915 | |
| -1 | -1,631,915 |
Let's try dividing by 4:
1,631,915 ÷ 4 = 407,978.75
If the quotient is a whole number, then 4 and 407,978.75 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 | 1,631,915 | |
| -1 | 1,631,915 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 73 | 85 | 263 | 365 | 1,241 | 1,315 | 4,471 | 6,205 | 19,199 | 22,355 | 95,995 | 326,383 | 1,631,915 |
| -1 | -5 | -17 | -73 | -85 | -263 | -365 | -1,241 | -1,315 | -4,471 | -6,205 | -19,199 | -22,355 | -95,995 | -326,383 | -1,631,915 |
Here are some more numbers to try:
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