A:
Positive:
1 x 16422255 x 32844513 x 12632525 x 6568931 x 5297565 x 25265155 x 10595163 x 10075325 x 5053403 x 4075775 x 2119815 x 2015
Negative:
-1 x -1642225-5 x -328445-13 x -126325-25 x -65689-31 x -52975-65 x -25265-155 x -10595-163 x -10075-325 x -5053-403 x -4075-775 x -2119-815 x -2015
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 1,642,225, 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 | 1,642,225 | |
| -1 | -1,642,225 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,642,225.
Example:
1 x 1,642,225 = 1,642,225
and
-1 x -1,642,225 = 1,642,225
Notice both answers equal 1,642,225
With that explanation out of the way, let's continue. Next, we take the number 1,642,225 and divide it by 2:
1,642,225 ÷ 2 = 821,112.5
If the quotient is a whole number, then 2 and 821,112.5 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 | 1,642,225 | |
| -1 | -1,642,225 |
Now, we try dividing 1,642,225 by 3:
1,642,225 ÷ 3 = 547,408.3333
If the quotient is a whole number, then 3 and 547,408.3333 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 | 1,642,225 | |
| -1 | -1,642,225 |
Let's try dividing by 4:
1,642,225 ÷ 4 = 410,556.25
If the quotient is a whole number, then 4 and 410,556.25 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 | 1,642,225 | |
| -1 | 1,642,225 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 31 | 65 | 155 | 163 | 325 | 403 | 775 | 815 | 2,015 | 2,119 | 4,075 | 5,053 | 10,075 | 10,595 | 25,265 | 52,975 | 65,689 | 126,325 | 328,445 | 1,642,225 |
| -1 | -5 | -13 | -25 | -31 | -65 | -155 | -163 | -325 | -403 | -775 | -815 | -2,015 | -2,119 | -4,075 | -5,053 | -10,075 | -10,595 | -25,265 | -52,975 | -65,689 | -126,325 | -328,445 | -1,642,225 |
Here are some more numbers to try:
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