A:
Positive:
1 x 153820037 x 219742913 x 118323143 x 35772191 x 169033301 x 51103559 x 275173913 x 3931
Negative:
-1 x -15382003-7 x -2197429-13 x -1183231-43 x -357721-91 x -169033-301 x -51103-559 x -27517-3913 x -3931
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 15,382,003, 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 | 15,382,003 | |
| -1 | -15,382,003 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,382,003.
Example:
1 x 15,382,003 = 15,382,003
and
-1 x -15,382,003 = 15,382,003
Notice both answers equal 15,382,003
With that explanation out of the way, let's continue. Next, we take the number 15,382,003 and divide it by 2:
15,382,003 ÷ 2 = 7,691,001.5
If the quotient is a whole number, then 2 and 7,691,001.5 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 | 15,382,003 | |
| -1 | -15,382,003 |
Now, we try dividing 15,382,003 by 3:
15,382,003 ÷ 3 = 5,127,334.3333
If the quotient is a whole number, then 3 and 5,127,334.3333 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 | 15,382,003 | |
| -1 | -15,382,003 |
Let's try dividing by 4:
15,382,003 ÷ 4 = 3,845,500.75
If the quotient is a whole number, then 4 and 3,845,500.75 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 | 15,382,003 | |
| -1 | 15,382,003 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 43 | 91 | 301 | 559 | 3,913 | 3,931 | 27,517 | 51,103 | 169,033 | 357,721 | 1,183,231 | 2,197,429 | 15,382,003 |
| -1 | -7 | -13 | -43 | -91 | -301 | -559 | -3,913 | -3,931 | -27,517 | -51,103 | -169,033 | -357,721 | -1,183,231 | -2,197,429 | -15,382,003 |
Here are some more numbers to try:
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