A:
Positive:
1 x 3124441917 x 183790723 x 135845341 x 762059391 x 79909697 x 44827943 x 331331949 x 16031
Negative:
-1 x -31244419-17 x -1837907-23 x -1358453-41 x -762059-391 x -79909-697 x -44827-943 x -33133-1949 x -16031
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 31,244,419, 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 | 31,244,419 | |
| -1 | -31,244,419 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,244,419.
Example:
1 x 31,244,419 = 31,244,419
and
-1 x -31,244,419 = 31,244,419
Notice both answers equal 31,244,419
With that explanation out of the way, let's continue. Next, we take the number 31,244,419 and divide it by 2:
31,244,419 ÷ 2 = 15,622,209.5
If the quotient is a whole number, then 2 and 15,622,209.5 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 | 31,244,419 | |
| -1 | -31,244,419 |
Now, we try dividing 31,244,419 by 3:
31,244,419 ÷ 3 = 10,414,806.3333
If the quotient is a whole number, then 3 and 10,414,806.3333 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 | 31,244,419 | |
| -1 | -31,244,419 |
Let's try dividing by 4:
31,244,419 ÷ 4 = 7,811,104.75
If the quotient is a whole number, then 4 and 7,811,104.75 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 | 31,244,419 | |
| -1 | 31,244,419 |
If you did it right, you will end up with this table:
| 1 | 17 | 23 | 41 | 391 | 697 | 943 | 1,949 | 16,031 | 33,133 | 44,827 | 79,909 | 762,059 | 1,358,453 | 1,837,907 | 31,244,419 |
| -1 | -17 | -23 | -41 | -391 | -697 | -943 | -1,949 | -16,031 | -33,133 | -44,827 | -79,909 | -762,059 | -1,358,453 | -1,837,907 | -31,244,419 |
Here are some more numbers to try:
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