A:
Positive:
1 x 126508855 x 253017713 x 97314565 x 194629191 x 66235955 x 132471019 x 124152483 x 5095
Negative:
-1 x -12650885-5 x -2530177-13 x -973145-65 x -194629-191 x -66235-955 x -13247-1019 x -12415-2483 x -5095
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 12,650,885, 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 | 12,650,885 | |
| -1 | -12,650,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,650,885.
Example:
1 x 12,650,885 = 12,650,885
and
-1 x -12,650,885 = 12,650,885
Notice both answers equal 12,650,885
With that explanation out of the way, let's continue. Next, we take the number 12,650,885 and divide it by 2:
12,650,885 ÷ 2 = 6,325,442.5
If the quotient is a whole number, then 2 and 6,325,442.5 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 | 12,650,885 | |
| -1 | -12,650,885 |
Now, we try dividing 12,650,885 by 3:
12,650,885 ÷ 3 = 4,216,961.6667
If the quotient is a whole number, then 3 and 4,216,961.6667 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 | 12,650,885 | |
| -1 | -12,650,885 |
Let's try dividing by 4:
12,650,885 ÷ 4 = 3,162,721.25
If the quotient is a whole number, then 4 and 3,162,721.25 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 | 12,650,885 | |
| -1 | 12,650,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 191 | 955 | 1,019 | 2,483 | 5,095 | 12,415 | 13,247 | 66,235 | 194,629 | 973,145 | 2,530,177 | 12,650,885 |
| -1 | -5 | -13 | -65 | -191 | -955 | -1,019 | -2,483 | -5,095 | -12,415 | -13,247 | -66,235 | -194,629 | -973,145 | -2,530,177 | -12,650,885 |
Here are some more numbers to try:
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