A:
Positive:
1 x 3304420217 x 4720600313 x 2541861791 x 3631231269 x 12284091883 x 1754873497 x 9449313499 x 24479
Negative:
-1 x -330442021-7 x -47206003-13 x -25418617-91 x -3631231-269 x -1228409-1883 x -175487-3497 x -94493-13499 x -24479
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 330,442,021, 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 | 330,442,021 | |
| -1 | -330,442,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 330,442,021.
Example:
1 x 330,442,021 = 330,442,021
and
-1 x -330,442,021 = 330,442,021
Notice both answers equal 330,442,021
With that explanation out of the way, let's continue. Next, we take the number 330,442,021 and divide it by 2:
330,442,021 ÷ 2 = 165,221,010.5
If the quotient is a whole number, then 2 and 165,221,010.5 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 | 330,442,021 | |
| -1 | -330,442,021 |
Now, we try dividing 330,442,021 by 3:
330,442,021 ÷ 3 = 110,147,340.3333
If the quotient is a whole number, then 3 and 110,147,340.3333 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 | 330,442,021 | |
| -1 | -330,442,021 |
Let's try dividing by 4:
330,442,021 ÷ 4 = 82,610,505.25
If the quotient is a whole number, then 4 and 82,610,505.25 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 | 330,442,021 | |
| -1 | 330,442,021 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 269 | 1,883 | 3,497 | 13,499 | 24,479 | 94,493 | 175,487 | 1,228,409 | 3,631,231 | 25,418,617 | 47,206,003 | 330,442,021 |
| -1 | -7 | -13 | -91 | -269 | -1,883 | -3,497 | -13,499 | -24,479 | -94,493 | -175,487 | -1,228,409 | -3,631,231 | -25,418,617 | -47,206,003 | -330,442,021 |
Here are some more numbers to try:
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