A:
Positive:
1 x 150016755 x 300033513 x 115397525 x 60006731 x 48392565 x 230795155 x 96785325 x 46159403 x 37225775 x 193571489 x 100752015 x 7445
Negative:
-1 x -15001675-5 x -3000335-13 x -1153975-25 x -600067-31 x -483925-65 x -230795-155 x -96785-325 x -46159-403 x -37225-775 x -19357-1489 x -10075-2015 x -7445
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 15,001,675, 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 | 15,001,675 | |
| -1 | -15,001,675 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,001,675.
Example:
1 x 15,001,675 = 15,001,675
and
-1 x -15,001,675 = 15,001,675
Notice both answers equal 15,001,675
With that explanation out of the way, let's continue. Next, we take the number 15,001,675 and divide it by 2:
15,001,675 ÷ 2 = 7,500,837.5
If the quotient is a whole number, then 2 and 7,500,837.5 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 | 15,001,675 | |
| -1 | -15,001,675 |
Now, we try dividing 15,001,675 by 3:
15,001,675 ÷ 3 = 5,000,558.3333
If the quotient is a whole number, then 3 and 5,000,558.3333 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 | 15,001,675 | |
| -1 | -15,001,675 |
Let's try dividing by 4:
15,001,675 ÷ 4 = 3,750,418.75
If the quotient is a whole number, then 4 and 3,750,418.75 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 | 15,001,675 | |
| -1 | 15,001,675 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 31 | 65 | 155 | 325 | 403 | 775 | 1,489 | 2,015 | 7,445 | 10,075 | 19,357 | 37,225 | 46,159 | 96,785 | 230,795 | 483,925 | 600,067 | 1,153,975 | 3,000,335 | 15,001,675 |
| -1 | -5 | -13 | -25 | -31 | -65 | -155 | -325 | -403 | -775 | -1,489 | -2,015 | -7,445 | -10,075 | -19,357 | -37,225 | -46,159 | -96,785 | -230,795 | -483,925 | -600,067 | -1,153,975 | -3,000,335 | -15,001,675 |
Here are some more numbers to try:
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