A:
Positive:
1 x 125606155 x 251212319 x 66108595 x 132217109 x 115235545 x 230471213 x 103552071 x 6065
Negative:
-1 x -12560615-5 x -2512123-19 x -661085-95 x -132217-109 x -115235-545 x -23047-1213 x -10355-2071 x -6065
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 12,560,615, 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 | 12,560,615 | |
| -1 | -12,560,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,560,615.
Example:
1 x 12,560,615 = 12,560,615
and
-1 x -12,560,615 = 12,560,615
Notice both answers equal 12,560,615
With that explanation out of the way, let's continue. Next, we take the number 12,560,615 and divide it by 2:
12,560,615 ÷ 2 = 6,280,307.5
If the quotient is a whole number, then 2 and 6,280,307.5 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 | 12,560,615 | |
| -1 | -12,560,615 |
Now, we try dividing 12,560,615 by 3:
12,560,615 ÷ 3 = 4,186,871.6667
If the quotient is a whole number, then 3 and 4,186,871.6667 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 | 12,560,615 | |
| -1 | -12,560,615 |
Let's try dividing by 4:
12,560,615 ÷ 4 = 3,140,153.75
If the quotient is a whole number, then 4 and 3,140,153.75 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 | 12,560,615 | |
| -1 | 12,560,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 109 | 545 | 1,213 | 2,071 | 6,065 | 10,355 | 23,047 | 115,235 | 132,217 | 661,085 | 2,512,123 | 12,560,615 |
| -1 | -5 | -19 | -95 | -109 | -545 | -1,213 | -2,071 | -6,065 | -10,355 | -23,047 | -115,235 | -132,217 | -661,085 | -2,512,123 | -12,560,615 |
Here are some more numbers to try:
Try the factor calculator