A:
Positive:
1 x 124251555 x 248503137 x 33581547 x 264365185 x 67163235 x 528731429 x 86951739 x 7145
Negative:
-1 x -12425155-5 x -2485031-37 x -335815-47 x -264365-185 x -67163-235 x -52873-1429 x -8695-1739 x -7145
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 12,425,155, 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 | 12,425,155 | |
| -1 | -12,425,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,425,155.
Example:
1 x 12,425,155 = 12,425,155
and
-1 x -12,425,155 = 12,425,155
Notice both answers equal 12,425,155
With that explanation out of the way, let's continue. Next, we take the number 12,425,155 and divide it by 2:
12,425,155 ÷ 2 = 6,212,577.5
If the quotient is a whole number, then 2 and 6,212,577.5 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 | 12,425,155 | |
| -1 | -12,425,155 |
Now, we try dividing 12,425,155 by 3:
12,425,155 ÷ 3 = 4,141,718.3333
If the quotient is a whole number, then 3 and 4,141,718.3333 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 | 12,425,155 | |
| -1 | -12,425,155 |
Let's try dividing by 4:
12,425,155 ÷ 4 = 3,106,288.75
If the quotient is a whole number, then 4 and 3,106,288.75 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 | 12,425,155 | |
| -1 | 12,425,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 47 | 185 | 235 | 1,429 | 1,739 | 7,145 | 8,695 | 52,873 | 67,163 | 264,365 | 335,815 | 2,485,031 | 12,425,155 |
| -1 | -5 | -37 | -47 | -185 | -235 | -1,429 | -1,739 | -7,145 | -8,695 | -52,873 | -67,163 | -264,365 | -335,815 | -2,485,031 | -12,425,155 |
Here are some more numbers to try:
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