A:
Positive:
1 x 123194055 x 24638817 x 175991535 x 35198347 x 262115235 x 52423329 x 374451645 x 7489
Negative:
-1 x -12319405-5 x -2463881-7 x -1759915-35 x -351983-47 x -262115-235 x -52423-329 x -37445-1645 x -7489
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 12,319,405, 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 | 12,319,405 | |
| -1 | -12,319,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,319,405.
Example:
1 x 12,319,405 = 12,319,405
and
-1 x -12,319,405 = 12,319,405
Notice both answers equal 12,319,405
With that explanation out of the way, let's continue. Next, we take the number 12,319,405 and divide it by 2:
12,319,405 ÷ 2 = 6,159,702.5
If the quotient is a whole number, then 2 and 6,159,702.5 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 | 12,319,405 | |
| -1 | -12,319,405 |
Now, we try dividing 12,319,405 by 3:
12,319,405 ÷ 3 = 4,106,468.3333
If the quotient is a whole number, then 3 and 4,106,468.3333 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 | 12,319,405 | |
| -1 | -12,319,405 |
Let's try dividing by 4:
12,319,405 ÷ 4 = 3,079,851.25
If the quotient is a whole number, then 4 and 3,079,851.25 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 | 12,319,405 | |
| -1 | 12,319,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 47 | 235 | 329 | 1,645 | 7,489 | 37,445 | 52,423 | 262,115 | 351,983 | 1,759,915 | 2,463,881 | 12,319,405 |
| -1 | -5 | -7 | -35 | -47 | -235 | -329 | -1,645 | -7,489 | -37,445 | -52,423 | -262,115 | -351,983 | -1,759,915 | -2,463,881 | -12,319,405 |
Here are some more numbers to try:
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