A:
Positive:
1 x 152335155 x 304670311 x 138486555 x 276973173 x 88055865 x 176111601 x 95151903 x 8005
Negative:
-1 x -15233515-5 x -3046703-11 x -1384865-55 x -276973-173 x -88055-865 x -17611-1601 x -9515-1903 x -8005
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 15,233,515, 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 | 15,233,515 | |
| -1 | -15,233,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,233,515.
Example:
1 x 15,233,515 = 15,233,515
and
-1 x -15,233,515 = 15,233,515
Notice both answers equal 15,233,515
With that explanation out of the way, let's continue. Next, we take the number 15,233,515 and divide it by 2:
15,233,515 ÷ 2 = 7,616,757.5
If the quotient is a whole number, then 2 and 7,616,757.5 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 | 15,233,515 | |
| -1 | -15,233,515 |
Now, we try dividing 15,233,515 by 3:
15,233,515 ÷ 3 = 5,077,838.3333
If the quotient is a whole number, then 3 and 5,077,838.3333 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 | 15,233,515 | |
| -1 | -15,233,515 |
Let's try dividing by 4:
15,233,515 ÷ 4 = 3,808,378.75
If the quotient is a whole number, then 4 and 3,808,378.75 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 | 15,233,515 | |
| -1 | 15,233,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 173 | 865 | 1,601 | 1,903 | 8,005 | 9,515 | 17,611 | 88,055 | 276,973 | 1,384,865 | 3,046,703 | 15,233,515 |
| -1 | -5 | -11 | -55 | -173 | -865 | -1,601 | -1,903 | -8,005 | -9,515 | -17,611 | -88,055 | -276,973 | -1,384,865 | -3,046,703 | -15,233,515 |
Here are some more numbers to try:
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