A:
Positive:
1 x 311517355 x 623034717 x 183245519 x 163956585 x 36649195 x 327913323 x 964451615 x 19289
Negative:
-1 x -31151735-5 x -6230347-17 x -1832455-19 x -1639565-85 x -366491-95 x -327913-323 x -96445-1615 x -19289
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 31,151,735, 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 | 31,151,735 | |
| -1 | -31,151,735 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,151,735.
Example:
1 x 31,151,735 = 31,151,735
and
-1 x -31,151,735 = 31,151,735
Notice both answers equal 31,151,735
With that explanation out of the way, let's continue. Next, we take the number 31,151,735 and divide it by 2:
31,151,735 ÷ 2 = 15,575,867.5
If the quotient is a whole number, then 2 and 15,575,867.5 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 | 31,151,735 | |
| -1 | -31,151,735 |
Now, we try dividing 31,151,735 by 3:
31,151,735 ÷ 3 = 10,383,911.6667
If the quotient is a whole number, then 3 and 10,383,911.6667 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 | 31,151,735 | |
| -1 | -31,151,735 |
Let's try dividing by 4:
31,151,735 ÷ 4 = 7,787,933.75
If the quotient is a whole number, then 4 and 7,787,933.75 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 | 31,151,735 | |
| -1 | 31,151,735 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 85 | 95 | 323 | 1,615 | 19,289 | 96,445 | 327,913 | 366,491 | 1,639,565 | 1,832,455 | 6,230,347 | 31,151,735 |
| -1 | -5 | -17 | -19 | -85 | -95 | -323 | -1,615 | -19,289 | -96,445 | -327,913 | -366,491 | -1,639,565 | -1,832,455 | -6,230,347 | -31,151,735 |
Here are some more numbers to try:
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