A:
Positive:
1 x 124180455 x 248360923 x 53991583 x 149615115 x 107983415 x 299231301 x 95451909 x 6505
Negative:
-1 x -12418045-5 x -2483609-23 x -539915-83 x -149615-115 x -107983-415 x -29923-1301 x -9545-1909 x -6505
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 12,418,045, 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 | 12,418,045 | |
| -1 | -12,418,045 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,418,045.
Example:
1 x 12,418,045 = 12,418,045
and
-1 x -12,418,045 = 12,418,045
Notice both answers equal 12,418,045
With that explanation out of the way, let's continue. Next, we take the number 12,418,045 and divide it by 2:
12,418,045 ÷ 2 = 6,209,022.5
If the quotient is a whole number, then 2 and 6,209,022.5 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 | 12,418,045 | |
| -1 | -12,418,045 |
Now, we try dividing 12,418,045 by 3:
12,418,045 ÷ 3 = 4,139,348.3333
If the quotient is a whole number, then 3 and 4,139,348.3333 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 | 12,418,045 | |
| -1 | -12,418,045 |
Let's try dividing by 4:
12,418,045 ÷ 4 = 3,104,511.25
If the quotient is a whole number, then 4 and 3,104,511.25 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 | 12,418,045 | |
| -1 | 12,418,045 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 83 | 115 | 415 | 1,301 | 1,909 | 6,505 | 9,545 | 29,923 | 107,983 | 149,615 | 539,915 | 2,483,609 | 12,418,045 |
| -1 | -5 | -23 | -83 | -115 | -415 | -1,301 | -1,909 | -6,505 | -9,545 | -29,923 | -107,983 | -149,615 | -539,915 | -2,483,609 | -12,418,045 |
Here are some more numbers to try:
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