A:
Positive:
1 x 31989655 x 6397937 x 45699511 x 29081535 x 9139949 x 6528555 x 5816377 x 41545245 x 13057385 x 8309539 x 59351187 x 2695
Negative:
-1 x -3198965-5 x -639793-7 x -456995-11 x -290815-35 x -91399-49 x -65285-55 x -58163-77 x -41545-245 x -13057-385 x -8309-539 x -5935-1187 x -2695
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 3,198,965, 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 | 3,198,965 | |
| -1 | -3,198,965 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,198,965.
Example:
1 x 3,198,965 = 3,198,965
and
-1 x -3,198,965 = 3,198,965
Notice both answers equal 3,198,965
With that explanation out of the way, let's continue. Next, we take the number 3,198,965 and divide it by 2:
3,198,965 ÷ 2 = 1,599,482.5
If the quotient is a whole number, then 2 and 1,599,482.5 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 | 3,198,965 | |
| -1 | -3,198,965 |
Now, we try dividing 3,198,965 by 3:
3,198,965 ÷ 3 = 1,066,321.6667
If the quotient is a whole number, then 3 and 1,066,321.6667 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 | 3,198,965 | |
| -1 | -3,198,965 |
Let's try dividing by 4:
3,198,965 ÷ 4 = 799,741.25
If the quotient is a whole number, then 4 and 799,741.25 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 | 3,198,965 | |
| -1 | 3,198,965 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 49 | 55 | 77 | 245 | 385 | 539 | 1,187 | 2,695 | 5,935 | 8,309 | 13,057 | 41,545 | 58,163 | 65,285 | 91,399 | 290,815 | 456,995 | 639,793 | 3,198,965 |
| -1 | -5 | -7 | -11 | -35 | -49 | -55 | -77 | -245 | -385 | -539 | -1,187 | -2,695 | -5,935 | -8,309 | -13,057 | -41,545 | -58,163 | -65,285 | -91,399 | -290,815 | -456,995 | -639,793 | -3,198,965 |
Here are some more numbers to try:
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