A:
Positive:
1 x 120423955 x 240847929 x 41525553 x 227215145 x 83051265 x 454431537 x 78351567 x 7685
Negative:
-1 x -12042395-5 x -2408479-29 x -415255-53 x -227215-145 x -83051-265 x -45443-1537 x -7835-1567 x -7685
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 12,042,395, 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 | 12,042,395 | |
| -1 | -12,042,395 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,042,395.
Example:
1 x 12,042,395 = 12,042,395
and
-1 x -12,042,395 = 12,042,395
Notice both answers equal 12,042,395
With that explanation out of the way, let's continue. Next, we take the number 12,042,395 and divide it by 2:
12,042,395 ÷ 2 = 6,021,197.5
If the quotient is a whole number, then 2 and 6,021,197.5 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 | 12,042,395 | |
| -1 | -12,042,395 |
Now, we try dividing 12,042,395 by 3:
12,042,395 ÷ 3 = 4,014,131.6667
If the quotient is a whole number, then 3 and 4,014,131.6667 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 | 12,042,395 | |
| -1 | -12,042,395 |
Let's try dividing by 4:
12,042,395 ÷ 4 = 3,010,598.75
If the quotient is a whole number, then 4 and 3,010,598.75 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 | 12,042,395 | |
| -1 | 12,042,395 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 53 | 145 | 265 | 1,537 | 1,567 | 7,685 | 7,835 | 45,443 | 83,051 | 227,215 | 415,255 | 2,408,479 | 12,042,395 |
| -1 | -5 | -29 | -53 | -145 | -265 | -1,537 | -1,567 | -7,685 | -7,835 | -45,443 | -83,051 | -227,215 | -415,255 | -2,408,479 | -12,042,395 |
Here are some more numbers to try:
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