A:
Positive:
1 x 124193517 x 177419341 x 302911109 x 113939287 x 43273397 x 31283763 x 162772779 x 4469
Negative:
-1 x -12419351-7 x -1774193-41 x -302911-109 x -113939-287 x -43273-397 x -31283-763 x -16277-2779 x -4469
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 12,419,351, 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 | 12,419,351 | |
| -1 | -12,419,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,419,351.
Example:
1 x 12,419,351 = 12,419,351
and
-1 x -12,419,351 = 12,419,351
Notice both answers equal 12,419,351
With that explanation out of the way, let's continue. Next, we take the number 12,419,351 and divide it by 2:
12,419,351 ÷ 2 = 6,209,675.5
If the quotient is a whole number, then 2 and 6,209,675.5 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 | 12,419,351 | |
| -1 | -12,419,351 |
Now, we try dividing 12,419,351 by 3:
12,419,351 ÷ 3 = 4,139,783.6667
If the quotient is a whole number, then 3 and 4,139,783.6667 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 | 12,419,351 | |
| -1 | -12,419,351 |
Let's try dividing by 4:
12,419,351 ÷ 4 = 3,104,837.75
If the quotient is a whole number, then 4 and 3,104,837.75 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 | 12,419,351 | |
| -1 | 12,419,351 |
If you did it right, you will end up with this table:
| 1 | 7 | 41 | 109 | 287 | 397 | 763 | 2,779 | 4,469 | 16,277 | 31,283 | 43,273 | 113,939 | 302,911 | 1,774,193 | 12,419,351 |
| -1 | -7 | -41 | -109 | -287 | -397 | -763 | -2,779 | -4,469 | -16,277 | -31,283 | -43,273 | -113,939 | -302,911 | -1,774,193 | -12,419,351 |
Here are some more numbers to try:
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