A:
Positive:
1 x 131985355 x 26397077 x 188550535 x 377101439 x 30065859 x 153652195 x 60133073 x 4295
Negative:
-1 x -13198535-5 x -2639707-7 x -1885505-35 x -377101-439 x -30065-859 x -15365-2195 x -6013-3073 x -4295
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 13,198,535, 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 | 13,198,535 | |
| -1 | -13,198,535 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,198,535.
Example:
1 x 13,198,535 = 13,198,535
and
-1 x -13,198,535 = 13,198,535
Notice both answers equal 13,198,535
With that explanation out of the way, let's continue. Next, we take the number 13,198,535 and divide it by 2:
13,198,535 ÷ 2 = 6,599,267.5
If the quotient is a whole number, then 2 and 6,599,267.5 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 | 13,198,535 | |
| -1 | -13,198,535 |
Now, we try dividing 13,198,535 by 3:
13,198,535 ÷ 3 = 4,399,511.6667
If the quotient is a whole number, then 3 and 4,399,511.6667 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 | 13,198,535 | |
| -1 | -13,198,535 |
Let's try dividing by 4:
13,198,535 ÷ 4 = 3,299,633.75
If the quotient is a whole number, then 4 and 3,299,633.75 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 | 13,198,535 | |
| -1 | 13,198,535 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 439 | 859 | 2,195 | 3,073 | 4,295 | 6,013 | 15,365 | 30,065 | 377,101 | 1,885,505 | 2,639,707 | 13,198,535 |
| -1 | -5 | -7 | -35 | -439 | -859 | -2,195 | -3,073 | -4,295 | -6,013 | -15,365 | -30,065 | -377,101 | -1,885,505 | -2,639,707 | -13,198,535 |
Here are some more numbers to try:
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