A:
Positive:
1 x 150174855 x 30034977 x 214535531 x 48443535 x 429071155 x 96887217 x 692051085 x 13841
Negative:
-1 x -15017485-5 x -3003497-7 x -2145355-31 x -484435-35 x -429071-155 x -96887-217 x -69205-1085 x -13841
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 15,017,485, 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 | 15,017,485 | |
| -1 | -15,017,485 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,017,485.
Example:
1 x 15,017,485 = 15,017,485
and
-1 x -15,017,485 = 15,017,485
Notice both answers equal 15,017,485
With that explanation out of the way, let's continue. Next, we take the number 15,017,485 and divide it by 2:
15,017,485 ÷ 2 = 7,508,742.5
If the quotient is a whole number, then 2 and 7,508,742.5 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 | 15,017,485 | |
| -1 | -15,017,485 |
Now, we try dividing 15,017,485 by 3:
15,017,485 ÷ 3 = 5,005,828.3333
If the quotient is a whole number, then 3 and 5,005,828.3333 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 | 15,017,485 | |
| -1 | -15,017,485 |
Let's try dividing by 4:
15,017,485 ÷ 4 = 3,754,371.25
If the quotient is a whole number, then 4 and 3,754,371.25 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 | 15,017,485 | |
| -1 | 15,017,485 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 13,841 | 69,205 | 96,887 | 429,071 | 484,435 | 2,145,355 | 3,003,497 | 15,017,485 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -13,841 | -69,205 | -96,887 | -429,071 | -484,435 | -2,145,355 | -3,003,497 | -15,017,485 |
Here are some more numbers to try:
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