A:
Positive:
1 x 127375155 x 25475037 x 181964523 x 55380535 x 363929115 x 110761161 x 79115805 x 15823
Negative:
-1 x -12737515-5 x -2547503-7 x -1819645-23 x -553805-35 x -363929-115 x -110761-161 x -79115-805 x -15823
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 12,737,515, 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 | 12,737,515 | |
| -1 | -12,737,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,737,515.
Example:
1 x 12,737,515 = 12,737,515
and
-1 x -12,737,515 = 12,737,515
Notice both answers equal 12,737,515
With that explanation out of the way, let's continue. Next, we take the number 12,737,515 and divide it by 2:
12,737,515 ÷ 2 = 6,368,757.5
If the quotient is a whole number, then 2 and 6,368,757.5 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 | 12,737,515 | |
| -1 | -12,737,515 |
Now, we try dividing 12,737,515 by 3:
12,737,515 ÷ 3 = 4,245,838.3333
If the quotient is a whole number, then 3 and 4,245,838.3333 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 | 12,737,515 | |
| -1 | -12,737,515 |
Let's try dividing by 4:
12,737,515 ÷ 4 = 3,184,378.75
If the quotient is a whole number, then 4 and 3,184,378.75 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 | 12,737,515 | |
| -1 | 12,737,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 35 | 115 | 161 | 805 | 15,823 | 79,115 | 110,761 | 363,929 | 553,805 | 1,819,645 | 2,547,503 | 12,737,515 |
| -1 | -5 | -7 | -23 | -35 | -115 | -161 | -805 | -15,823 | -79,115 | -110,761 | -363,929 | -553,805 | -1,819,645 | -2,547,503 | -12,737,515 |
Here are some more numbers to try:
Try the factor calculator