A:
Positive:
1 x 31331517 x 44759317 x 184303113 x 27727119 x 26329233 x 13447791 x 39611631 x 1921
Negative:
-1 x -3133151-7 x -447593-17 x -184303-113 x -27727-119 x -26329-233 x -13447-791 x -3961-1631 x -1921
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 3,133,151, 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 | 3,133,151 | |
| -1 | -3,133,151 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,133,151.
Example:
1 x 3,133,151 = 3,133,151
and
-1 x -3,133,151 = 3,133,151
Notice both answers equal 3,133,151
With that explanation out of the way, let's continue. Next, we take the number 3,133,151 and divide it by 2:
3,133,151 ÷ 2 = 1,566,575.5
If the quotient is a whole number, then 2 and 1,566,575.5 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 | 3,133,151 | |
| -1 | -3,133,151 |
Now, we try dividing 3,133,151 by 3:
3,133,151 ÷ 3 = 1,044,383.6667
If the quotient is a whole number, then 3 and 1,044,383.6667 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 | 3,133,151 | |
| -1 | -3,133,151 |
Let's try dividing by 4:
3,133,151 ÷ 4 = 783,287.75
If the quotient is a whole number, then 4 and 783,287.75 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 | 3,133,151 | |
| -1 | 3,133,151 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 113 | 119 | 233 | 791 | 1,631 | 1,921 | 3,961 | 13,447 | 26,329 | 27,727 | 184,303 | 447,593 | 3,133,151 |
| -1 | -7 | -17 | -113 | -119 | -233 | -791 | -1,631 | -1,921 | -3,961 | -13,447 | -26,329 | -27,727 | -184,303 | -447,593 | -3,133,151 |
Here are some more numbers to try:
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