A:
Positive:
1 x 36219955 x 72439913 x 27861565 x 55723103 x 35165515 x 7033541 x 66951339 x 2705
Negative:
-1 x -3621995-5 x -724399-13 x -278615-65 x -55723-103 x -35165-515 x -7033-541 x -6695-1339 x -2705
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 3,621,995, 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 | 3,621,995 | |
| -1 | -3,621,995 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,621,995.
Example:
1 x 3,621,995 = 3,621,995
and
-1 x -3,621,995 = 3,621,995
Notice both answers equal 3,621,995
With that explanation out of the way, let's continue. Next, we take the number 3,621,995 and divide it by 2:
3,621,995 ÷ 2 = 1,810,997.5
If the quotient is a whole number, then 2 and 1,810,997.5 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 | 3,621,995 | |
| -1 | -3,621,995 |
Now, we try dividing 3,621,995 by 3:
3,621,995 ÷ 3 = 1,207,331.6667
If the quotient is a whole number, then 3 and 1,207,331.6667 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 | 3,621,995 | |
| -1 | -3,621,995 |
Let's try dividing by 4:
3,621,995 ÷ 4 = 905,498.75
If the quotient is a whole number, then 4 and 905,498.75 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 | 3,621,995 | |
| -1 | 3,621,995 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 103 | 515 | 541 | 1,339 | 2,705 | 6,695 | 7,033 | 35,165 | 55,723 | 278,615 | 724,399 | 3,621,995 |
| -1 | -5 | -13 | -65 | -103 | -515 | -541 | -1,339 | -2,705 | -6,695 | -7,033 | -35,165 | -55,723 | -278,615 | -724,399 | -3,621,995 |
Here are some more numbers to try:
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