A:
Positive:
1 x 40022155 x 8004437 x 57174535 x 11434941 x 97615205 x 19523287 x 139451435 x 2789
Negative:
-1 x -4002215-5 x -800443-7 x -571745-35 x -114349-41 x -97615-205 x -19523-287 x -13945-1435 x -2789
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 4,002,215, 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 | 4,002,215 | |
| -1 | -4,002,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 4,002,215.
Example:
1 x 4,002,215 = 4,002,215
and
-1 x -4,002,215 = 4,002,215
Notice both answers equal 4,002,215
With that explanation out of the way, let's continue. Next, we take the number 4,002,215 and divide it by 2:
4,002,215 ÷ 2 = 2,001,107.5
If the quotient is a whole number, then 2 and 2,001,107.5 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 | 4,002,215 | |
| -1 | -4,002,215 |
Now, we try dividing 4,002,215 by 3:
4,002,215 ÷ 3 = 1,334,071.6667
If the quotient is a whole number, then 3 and 1,334,071.6667 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 | 4,002,215 | |
| -1 | -4,002,215 |
Let's try dividing by 4:
4,002,215 ÷ 4 = 1,000,553.75
If the quotient is a whole number, then 4 and 1,000,553.75 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 | 4,002,215 | |
| -1 | 4,002,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 41 | 205 | 287 | 1,435 | 2,789 | 13,945 | 19,523 | 97,615 | 114,349 | 571,745 | 800,443 | 4,002,215 |
| -1 | -5 | -7 | -35 | -41 | -205 | -287 | -1,435 | -2,789 | -13,945 | -19,523 | -97,615 | -114,349 | -571,745 | -800,443 | -4,002,215 |
Here are some more numbers to try:
Try the factor calculator