A:
Positive:
1 x 17200197 x 24571729 x 5931137 x 46487203 x 8473229 x 7511259 x 66411073 x 1603
Negative:
-1 x -1720019-7 x -245717-29 x -59311-37 x -46487-203 x -8473-229 x -7511-259 x -6641-1073 x -1603
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 1,720,019, 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 | 1,720,019 | |
| -1 | -1,720,019 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,720,019.
Example:
1 x 1,720,019 = 1,720,019
and
-1 x -1,720,019 = 1,720,019
Notice both answers equal 1,720,019
With that explanation out of the way, let's continue. Next, we take the number 1,720,019 and divide it by 2:
1,720,019 ÷ 2 = 860,009.5
If the quotient is a whole number, then 2 and 860,009.5 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 | 1,720,019 | |
| -1 | -1,720,019 |
Now, we try dividing 1,720,019 by 3:
1,720,019 ÷ 3 = 573,339.6667
If the quotient is a whole number, then 3 and 573,339.6667 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 | 1,720,019 | |
| -1 | -1,720,019 |
Let's try dividing by 4:
1,720,019 ÷ 4 = 430,004.75
If the quotient is a whole number, then 4 and 430,004.75 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 | 1,720,019 | |
| -1 | 1,720,019 |
If you did it right, you will end up with this table:
| 1 | 7 | 29 | 37 | 203 | 229 | 259 | 1,073 | 1,603 | 6,641 | 7,511 | 8,473 | 46,487 | 59,311 | 245,717 | 1,720,019 |
| -1 | -7 | -29 | -37 | -203 | -229 | -259 | -1,073 | -1,603 | -6,641 | -7,511 | -8,473 | -46,487 | -59,311 | -245,717 | -1,720,019 |
Here are some more numbers to try:
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