A:
Positive:
1 x 16212355 x 3242477 x 23160511 x 14738535 x 4632155 x 2947777 x 21055385 x 4211
Negative:
-1 x -1621235-5 x -324247-7 x -231605-11 x -147385-35 x -46321-55 x -29477-77 x -21055-385 x -4211
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 1,621,235, 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 | 1,621,235 | |
| -1 | -1,621,235 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,621,235.
Example:
1 x 1,621,235 = 1,621,235
and
-1 x -1,621,235 = 1,621,235
Notice both answers equal 1,621,235
With that explanation out of the way, let's continue. Next, we take the number 1,621,235 and divide it by 2:
1,621,235 ÷ 2 = 810,617.5
If the quotient is a whole number, then 2 and 810,617.5 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 | 1,621,235 | |
| -1 | -1,621,235 |
Now, we try dividing 1,621,235 by 3:
1,621,235 ÷ 3 = 540,411.6667
If the quotient is a whole number, then 3 and 540,411.6667 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 | 1,621,235 | |
| -1 | -1,621,235 |
Let's try dividing by 4:
1,621,235 ÷ 4 = 405,308.75
If the quotient is a whole number, then 4 and 405,308.75 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 | 1,621,235 | |
| -1 | 1,621,235 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 4,211 | 21,055 | 29,477 | 46,321 | 147,385 | 231,605 | 324,247 | 1,621,235 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -4,211 | -21,055 | -29,477 | -46,321 | -147,385 | -231,605 | -324,247 | -1,621,235 |
Here are some more numbers to try:
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