A:
Positive:
1 x 138310137 x 197585917 x 81358971 x 194803119 x 116227497 x 278291207 x 114591637 x 8449
Negative:
-1 x -13831013-7 x -1975859-17 x -813589-71 x -194803-119 x -116227-497 x -27829-1207 x -11459-1637 x -8449
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 13,831,013, 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 | 13,831,013 | |
| -1 | -13,831,013 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,831,013.
Example:
1 x 13,831,013 = 13,831,013
and
-1 x -13,831,013 = 13,831,013
Notice both answers equal 13,831,013
With that explanation out of the way, let's continue. Next, we take the number 13,831,013 and divide it by 2:
13,831,013 ÷ 2 = 6,915,506.5
If the quotient is a whole number, then 2 and 6,915,506.5 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 | 13,831,013 | |
| -1 | -13,831,013 |
Now, we try dividing 13,831,013 by 3:
13,831,013 ÷ 3 = 4,610,337.6667
If the quotient is a whole number, then 3 and 4,610,337.6667 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 | 13,831,013 | |
| -1 | -13,831,013 |
Let's try dividing by 4:
13,831,013 ÷ 4 = 3,457,753.25
If the quotient is a whole number, then 4 and 3,457,753.25 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 | 13,831,013 | |
| -1 | 13,831,013 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 71 | 119 | 497 | 1,207 | 1,637 | 8,449 | 11,459 | 27,829 | 116,227 | 194,803 | 813,589 | 1,975,859 | 13,831,013 |
| -1 | -7 | -17 | -71 | -119 | -497 | -1,207 | -1,637 | -8,449 | -11,459 | -27,829 | -116,227 | -194,803 | -813,589 | -1,975,859 | -13,831,013 |
Here are some more numbers to try:
Try the factor calculator