A:
Positive:
1 x 138189597 x 197413711 x 125626977 x 179467197 x 70147911 x 151691379 x 100212167 x 6377
Negative:
-1 x -13818959-7 x -1974137-11 x -1256269-77 x -179467-197 x -70147-911 x -15169-1379 x -10021-2167 x -6377
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 13,818,959, 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 | 13,818,959 | |
| -1 | -13,818,959 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,818,959.
Example:
1 x 13,818,959 = 13,818,959
and
-1 x -13,818,959 = 13,818,959
Notice both answers equal 13,818,959
With that explanation out of the way, let's continue. Next, we take the number 13,818,959 and divide it by 2:
13,818,959 ÷ 2 = 6,909,479.5
If the quotient is a whole number, then 2 and 6,909,479.5 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 | 13,818,959 | |
| -1 | -13,818,959 |
Now, we try dividing 13,818,959 by 3:
13,818,959 ÷ 3 = 4,606,319.6667
If the quotient is a whole number, then 3 and 4,606,319.6667 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 | 13,818,959 | |
| -1 | -13,818,959 |
Let's try dividing by 4:
13,818,959 ÷ 4 = 3,454,739.75
If the quotient is a whole number, then 4 and 3,454,739.75 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 | 13,818,959 | |
| -1 | 13,818,959 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 197 | 911 | 1,379 | 2,167 | 6,377 | 10,021 | 15,169 | 70,147 | 179,467 | 1,256,269 | 1,974,137 | 13,818,959 |
| -1 | -7 | -11 | -77 | -197 | -911 | -1,379 | -2,167 | -6,377 | -10,021 | -15,169 | -70,147 | -179,467 | -1,256,269 | -1,974,137 | -13,818,959 |
Here are some more numbers to try:
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