A:
Positive:
1 x 314404517 x 449149359 x 532889269 x 116879283 x 111097413 x 761271883 x 166971981 x 15871
Negative:
-1 x -31440451-7 x -4491493-59 x -532889-269 x -116879-283 x -111097-413 x -76127-1883 x -16697-1981 x -15871
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 31,440,451, 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 | 31,440,451 | |
| -1 | -31,440,451 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,440,451.
Example:
1 x 31,440,451 = 31,440,451
and
-1 x -31,440,451 = 31,440,451
Notice both answers equal 31,440,451
With that explanation out of the way, let's continue. Next, we take the number 31,440,451 and divide it by 2:
31,440,451 ÷ 2 = 15,720,225.5
If the quotient is a whole number, then 2 and 15,720,225.5 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 | 31,440,451 | |
| -1 | -31,440,451 |
Now, we try dividing 31,440,451 by 3:
31,440,451 ÷ 3 = 10,480,150.3333
If the quotient is a whole number, then 3 and 10,480,150.3333 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 | 31,440,451 | |
| -1 | -31,440,451 |
Let's try dividing by 4:
31,440,451 ÷ 4 = 7,860,112.75
If the quotient is a whole number, then 4 and 7,860,112.75 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 | 31,440,451 | |
| -1 | 31,440,451 |
If you did it right, you will end up with this table:
| 1 | 7 | 59 | 269 | 283 | 413 | 1,883 | 1,981 | 15,871 | 16,697 | 76,127 | 111,097 | 116,879 | 532,889 | 4,491,493 | 31,440,451 |
| -1 | -7 | -59 | -269 | -283 | -413 | -1,883 | -1,981 | -15,871 | -16,697 | -76,127 | -111,097 | -116,879 | -532,889 | -4,491,493 | -31,440,451 |
Here are some more numbers to try:
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