A:
Positive:
1 x 15077155 x 30154311 x 13706555 x 2741379 x 19085347 x 4345395 x 3817869 x 1735
Negative:
-1 x -1507715-5 x -301543-11 x -137065-55 x -27413-79 x -19085-347 x -4345-395 x -3817-869 x -1735
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 1,507,715, 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 | 1,507,715 | |
| -1 | -1,507,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,507,715.
Example:
1 x 1,507,715 = 1,507,715
and
-1 x -1,507,715 = 1,507,715
Notice both answers equal 1,507,715
With that explanation out of the way, let's continue. Next, we take the number 1,507,715 and divide it by 2:
1,507,715 ÷ 2 = 753,857.5
If the quotient is a whole number, then 2 and 753,857.5 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 | 1,507,715 | |
| -1 | -1,507,715 |
Now, we try dividing 1,507,715 by 3:
1,507,715 ÷ 3 = 502,571.6667
If the quotient is a whole number, then 3 and 502,571.6667 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 | 1,507,715 | |
| -1 | -1,507,715 |
Let's try dividing by 4:
1,507,715 ÷ 4 = 376,928.75
If the quotient is a whole number, then 4 and 376,928.75 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 | 1,507,715 | |
| -1 | 1,507,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 79 | 347 | 395 | 869 | 1,735 | 3,817 | 4,345 | 19,085 | 27,413 | 137,065 | 301,543 | 1,507,715 |
| -1 | -5 | -11 | -55 | -79 | -347 | -395 | -869 | -1,735 | -3,817 | -4,345 | -19,085 | -27,413 | -137,065 | -301,543 | -1,507,715 |
Here are some more numbers to try:
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