A:
Positive:
1 x 32006455 x 6401297 x 45723519 x 16845535 x 9144795 x 33691133 x 24065665 x 4813
Negative:
-1 x -3200645-5 x -640129-7 x -457235-19 x -168455-35 x -91447-95 x -33691-133 x -24065-665 x -4813
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 3,200,645, 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 | 3,200,645 | |
| -1 | -3,200,645 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,200,645.
Example:
1 x 3,200,645 = 3,200,645
and
-1 x -3,200,645 = 3,200,645
Notice both answers equal 3,200,645
With that explanation out of the way, let's continue. Next, we take the number 3,200,645 and divide it by 2:
3,200,645 ÷ 2 = 1,600,322.5
If the quotient is a whole number, then 2 and 1,600,322.5 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 | 3,200,645 | |
| -1 | -3,200,645 |
Now, we try dividing 3,200,645 by 3:
3,200,645 ÷ 3 = 1,066,881.6667
If the quotient is a whole number, then 3 and 1,066,881.6667 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 | 3,200,645 | |
| -1 | -3,200,645 |
Let's try dividing by 4:
3,200,645 ÷ 4 = 800,161.25
If the quotient is a whole number, then 4 and 800,161.25 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 | 3,200,645 | |
| -1 | 3,200,645 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 19 | 35 | 95 | 133 | 665 | 4,813 | 24,065 | 33,691 | 91,447 | 168,455 | 457,235 | 640,129 | 3,200,645 |
| -1 | -5 | -7 | -19 | -35 | -95 | -133 | -665 | -4,813 | -24,065 | -33,691 | -91,447 | -168,455 | -457,235 | -640,129 | -3,200,645 |
Here are some more numbers to try:
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