A:
Positive:
1 x 123461455 x 24692297 x 176373535 x 352747173 x 71365865 x 142731211 x 101952039 x 6055
Negative:
-1 x -12346145-5 x -2469229-7 x -1763735-35 x -352747-173 x -71365-865 x -14273-1211 x -10195-2039 x -6055
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 12,346,145, 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 | 12,346,145 | |
| -1 | -12,346,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,346,145.
Example:
1 x 12,346,145 = 12,346,145
and
-1 x -12,346,145 = 12,346,145
Notice both answers equal 12,346,145
With that explanation out of the way, let's continue. Next, we take the number 12,346,145 and divide it by 2:
12,346,145 ÷ 2 = 6,173,072.5
If the quotient is a whole number, then 2 and 6,173,072.5 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 | 12,346,145 | |
| -1 | -12,346,145 |
Now, we try dividing 12,346,145 by 3:
12,346,145 ÷ 3 = 4,115,381.6667
If the quotient is a whole number, then 3 and 4,115,381.6667 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 | 12,346,145 | |
| -1 | -12,346,145 |
Let's try dividing by 4:
12,346,145 ÷ 4 = 3,086,536.25
If the quotient is a whole number, then 4 and 3,086,536.25 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 | 12,346,145 | |
| -1 | 12,346,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 173 | 865 | 1,211 | 2,039 | 6,055 | 10,195 | 14,273 | 71,365 | 352,747 | 1,763,735 | 2,469,229 | 12,346,145 |
| -1 | -5 | -7 | -35 | -173 | -865 | -1,211 | -2,039 | -6,055 | -10,195 | -14,273 | -71,365 | -352,747 | -1,763,735 | -2,469,229 | -12,346,145 |
Here are some more numbers to try:
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