A:
Positive:
1 x 138475155 x 276950311 x 125886555 x 25177379 x 175285395 x 35057869 x 159353187 x 4345
Negative:
-1 x -13847515-5 x -2769503-11 x -1258865-55 x -251773-79 x -175285-395 x -35057-869 x -15935-3187 x -4345
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 13,847,515, 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 | 13,847,515 | |
| -1 | -13,847,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,847,515.
Example:
1 x 13,847,515 = 13,847,515
and
-1 x -13,847,515 = 13,847,515
Notice both answers equal 13,847,515
With that explanation out of the way, let's continue. Next, we take the number 13,847,515 and divide it by 2:
13,847,515 ÷ 2 = 6,923,757.5
If the quotient is a whole number, then 2 and 6,923,757.5 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 | 13,847,515 | |
| -1 | -13,847,515 |
Now, we try dividing 13,847,515 by 3:
13,847,515 ÷ 3 = 4,615,838.3333
If the quotient is a whole number, then 3 and 4,615,838.3333 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 | 13,847,515 | |
| -1 | -13,847,515 |
Let's try dividing by 4:
13,847,515 ÷ 4 = 3,461,878.75
If the quotient is a whole number, then 4 and 3,461,878.75 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 | 13,847,515 | |
| -1 | 13,847,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 79 | 395 | 869 | 3,187 | 4,345 | 15,935 | 35,057 | 175,285 | 251,773 | 1,258,865 | 2,769,503 | 13,847,515 |
| -1 | -5 | -11 | -55 | -79 | -395 | -869 | -3,187 | -4,345 | -15,935 | -35,057 | -175,285 | -251,773 | -1,258,865 | -2,769,503 | -13,847,515 |
Here are some more numbers to try:
Try the factor calculator