A:
Positive:
1 x 66451917 x 94931331 x 214361113 x 58807217 x 30623271 x 24521791 x 84011897 x 3503
Negative:
-1 x -6645191-7 x -949313-31 x -214361-113 x -58807-217 x -30623-271 x -24521-791 x -8401-1897 x -3503
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 6,645,191, 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 | 6,645,191 | |
| -1 | -6,645,191 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 6,645,191.
Example:
1 x 6,645,191 = 6,645,191
and
-1 x -6,645,191 = 6,645,191
Notice both answers equal 6,645,191
With that explanation out of the way, let's continue. Next, we take the number 6,645,191 and divide it by 2:
6,645,191 ÷ 2 = 3,322,595.5
If the quotient is a whole number, then 2 and 3,322,595.5 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 | 6,645,191 | |
| -1 | -6,645,191 |
Now, we try dividing 6,645,191 by 3:
6,645,191 ÷ 3 = 2,215,063.6667
If the quotient is a whole number, then 3 and 2,215,063.6667 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 | 6,645,191 | |
| -1 | -6,645,191 |
Let's try dividing by 4:
6,645,191 ÷ 4 = 1,661,297.75
If the quotient is a whole number, then 4 and 1,661,297.75 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 | 6,645,191 | |
| -1 | 6,645,191 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 113 | 217 | 271 | 791 | 1,897 | 3,503 | 8,401 | 24,521 | 30,623 | 58,807 | 214,361 | 949,313 | 6,645,191 |
| -1 | -7 | -31 | -113 | -217 | -271 | -791 | -1,897 | -3,503 | -8,401 | -24,521 | -30,623 | -58,807 | -214,361 | -949,313 | -6,645,191 |
Here are some more numbers to try:
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