A:
Positive:
1 x 65782155 x 13156437 x 93974529 x 22683535 x 187949145 x 45367203 x 324051015 x 6481
Negative:
-1 x -6578215-5 x -1315643-7 x -939745-29 x -226835-35 x -187949-145 x -45367-203 x -32405-1015 x -6481
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 6,578,215, 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 | 6,578,215 | |
| -1 | -6,578,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 6,578,215.
Example:
1 x 6,578,215 = 6,578,215
and
-1 x -6,578,215 = 6,578,215
Notice both answers equal 6,578,215
With that explanation out of the way, let's continue. Next, we take the number 6,578,215 and divide it by 2:
6,578,215 ÷ 2 = 3,289,107.5
If the quotient is a whole number, then 2 and 3,289,107.5 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 | 6,578,215 | |
| -1 | -6,578,215 |
Now, we try dividing 6,578,215 by 3:
6,578,215 ÷ 3 = 2,192,738.3333
If the quotient is a whole number, then 3 and 2,192,738.3333 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 | 6,578,215 | |
| -1 | -6,578,215 |
Let's try dividing by 4:
6,578,215 ÷ 4 = 1,644,553.75
If the quotient is a whole number, then 4 and 1,644,553.75 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 | 6,578,215 | |
| -1 | 6,578,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 29 | 35 | 145 | 203 | 1,015 | 6,481 | 32,405 | 45,367 | 187,949 | 226,835 | 939,745 | 1,315,643 | 6,578,215 |
| -1 | -5 | -7 | -29 | -35 | -145 | -203 | -1,015 | -6,481 | -32,405 | -45,367 | -187,949 | -226,835 | -939,745 | -1,315,643 | -6,578,215 |
Here are some more numbers to try:
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