A:
Positive:
1 x 122103655 x 244207347 x 259795223 x 54755233 x 52405235 x 519591115 x 109511165 x 10481
Negative:
-1 x -12210365-5 x -2442073-47 x -259795-223 x -54755-233 x -52405-235 x -51959-1115 x -10951-1165 x -10481
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 12,210,365, 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 | 12,210,365 | |
| -1 | -12,210,365 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,210,365.
Example:
1 x 12,210,365 = 12,210,365
and
-1 x -12,210,365 = 12,210,365
Notice both answers equal 12,210,365
With that explanation out of the way, let's continue. Next, we take the number 12,210,365 and divide it by 2:
12,210,365 ÷ 2 = 6,105,182.5
If the quotient is a whole number, then 2 and 6,105,182.5 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 | 12,210,365 | |
| -1 | -12,210,365 |
Now, we try dividing 12,210,365 by 3:
12,210,365 ÷ 3 = 4,070,121.6667
If the quotient is a whole number, then 3 and 4,070,121.6667 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 | 12,210,365 | |
| -1 | -12,210,365 |
Let's try dividing by 4:
12,210,365 ÷ 4 = 3,052,591.25
If the quotient is a whole number, then 4 and 3,052,591.25 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 | 12,210,365 | |
| -1 | 12,210,365 |
If you did it right, you will end up with this table:
| 1 | 5 | 47 | 223 | 233 | 235 | 1,115 | 1,165 | 10,481 | 10,951 | 51,959 | 52,405 | 54,755 | 259,795 | 2,442,073 | 12,210,365 |
| -1 | -5 | -47 | -223 | -233 | -235 | -1,115 | -1,165 | -10,481 | -10,951 | -51,959 | -52,405 | -54,755 | -259,795 | -2,442,073 | -12,210,365 |
Here are some more numbers to try:
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