A:
Positive:
1 x 129290155 x 258580311 x 117536531 x 41706555 x 235073155 x 83413341 x 379151705 x 7583
Negative:
-1 x -12929015-5 x -2585803-11 x -1175365-31 x -417065-55 x -235073-155 x -83413-341 x -37915-1705 x -7583
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 12,929,015, 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 | 12,929,015 | |
| -1 | -12,929,015 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,929,015.
Example:
1 x 12,929,015 = 12,929,015
and
-1 x -12,929,015 = 12,929,015
Notice both answers equal 12,929,015
With that explanation out of the way, let's continue. Next, we take the number 12,929,015 and divide it by 2:
12,929,015 ÷ 2 = 6,464,507.5
If the quotient is a whole number, then 2 and 6,464,507.5 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 | 12,929,015 | |
| -1 | -12,929,015 |
Now, we try dividing 12,929,015 by 3:
12,929,015 ÷ 3 = 4,309,671.6667
If the quotient is a whole number, then 3 and 4,309,671.6667 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 | 12,929,015 | |
| -1 | -12,929,015 |
Let's try dividing by 4:
12,929,015 ÷ 4 = 3,232,253.75
If the quotient is a whole number, then 4 and 3,232,253.75 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 | 12,929,015 | |
| -1 | 12,929,015 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 31 | 55 | 155 | 341 | 1,705 | 7,583 | 37,915 | 83,413 | 235,073 | 417,065 | 1,175,365 | 2,585,803 | 12,929,015 |
| -1 | -5 | -11 | -31 | -55 | -155 | -341 | -1,705 | -7,583 | -37,915 | -83,413 | -235,073 | -417,065 | -1,175,365 | -2,585,803 | -12,929,015 |
Here are some more numbers to try:
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