A:
Positive:
1 x 32200155 x 64400329 x 11103553 x 60755145 x 22207265 x 12151419 x 76851537 x 2095
Negative:
-1 x -3220015-5 x -644003-29 x -111035-53 x -60755-145 x -22207-265 x -12151-419 x -7685-1537 x -2095
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 3,220,015, 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 | 3,220,015 | |
| -1 | -3,220,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,220,015.
Example:
1 x 3,220,015 = 3,220,015
and
-1 x -3,220,015 = 3,220,015
Notice both answers equal 3,220,015
With that explanation out of the way, let's continue. Next, we take the number 3,220,015 and divide it by 2:
3,220,015 ÷ 2 = 1,610,007.5
If the quotient is a whole number, then 2 and 1,610,007.5 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 | 3,220,015 | |
| -1 | -3,220,015 |
Now, we try dividing 3,220,015 by 3:
3,220,015 ÷ 3 = 1,073,338.3333
If the quotient is a whole number, then 3 and 1,073,338.3333 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 | 3,220,015 | |
| -1 | -3,220,015 |
Let's try dividing by 4:
3,220,015 ÷ 4 = 805,003.75
If the quotient is a whole number, then 4 and 805,003.75 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 | 3,220,015 | |
| -1 | 3,220,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 53 | 145 | 265 | 419 | 1,537 | 2,095 | 7,685 | 12,151 | 22,207 | 60,755 | 111,035 | 644,003 | 3,220,015 |
| -1 | -5 | -29 | -53 | -145 | -265 | -419 | -1,537 | -2,095 | -7,685 | -12,151 | -22,207 | -60,755 | -111,035 | -644,003 | -3,220,015 |
Here are some more numbers to try:
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