A:
Positive:
1 x 154436155 x 308872311 x 140396537 x 41739555 x 280793185 x 83479407 x 379452035 x 7589
Negative:
-1 x -15443615-5 x -3088723-11 x -1403965-37 x -417395-55 x -280793-185 x -83479-407 x -37945-2035 x -7589
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 15,443,615, 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 | 15,443,615 | |
| -1 | -15,443,615 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,443,615.
Example:
1 x 15,443,615 = 15,443,615
and
-1 x -15,443,615 = 15,443,615
Notice both answers equal 15,443,615
With that explanation out of the way, let's continue. Next, we take the number 15,443,615 and divide it by 2:
15,443,615 ÷ 2 = 7,721,807.5
If the quotient is a whole number, then 2 and 7,721,807.5 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 | 15,443,615 | |
| -1 | -15,443,615 |
Now, we try dividing 15,443,615 by 3:
15,443,615 ÷ 3 = 5,147,871.6667
If the quotient is a whole number, then 3 and 5,147,871.6667 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 | 15,443,615 | |
| -1 | -15,443,615 |
Let's try dividing by 4:
15,443,615 ÷ 4 = 3,860,903.75
If the quotient is a whole number, then 4 and 3,860,903.75 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 | 15,443,615 | |
| -1 | 15,443,615 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 37 | 55 | 185 | 407 | 2,035 | 7,589 | 37,945 | 83,479 | 280,793 | 417,395 | 1,403,965 | 3,088,723 | 15,443,615 |
| -1 | -5 | -11 | -37 | -55 | -185 | -407 | -2,035 | -7,589 | -37,945 | -83,479 | -280,793 | -417,395 | -1,403,965 | -3,088,723 | -15,443,615 |
Here are some more numbers to try:
Try the factor calculator