A:
Positive:
1 x 313034055 x 62606817 x 447191535 x 89438349 x 63884567 x 467215245 x 127769335 x 93443469 x 667451907 x 164152345 x 133493283 x 9535
Negative:
-1 x -31303405-5 x -6260681-7 x -4471915-35 x -894383-49 x -638845-67 x -467215-245 x -127769-335 x -93443-469 x -66745-1907 x -16415-2345 x -13349-3283 x -9535
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 31,303,405, 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 | 31,303,405 | |
| -1 | -31,303,405 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,303,405.
Example:
1 x 31,303,405 = 31,303,405
and
-1 x -31,303,405 = 31,303,405
Notice both answers equal 31,303,405
With that explanation out of the way, let's continue. Next, we take the number 31,303,405 and divide it by 2:
31,303,405 ÷ 2 = 15,651,702.5
If the quotient is a whole number, then 2 and 15,651,702.5 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 | 31,303,405 | |
| -1 | -31,303,405 |
Now, we try dividing 31,303,405 by 3:
31,303,405 ÷ 3 = 10,434,468.3333
If the quotient is a whole number, then 3 and 10,434,468.3333 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 | 31,303,405 | |
| -1 | -31,303,405 |
Let's try dividing by 4:
31,303,405 ÷ 4 = 7,825,851.25
If the quotient is a whole number, then 4 and 7,825,851.25 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 | 31,303,405 | |
| -1 | 31,303,405 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 67 | 245 | 335 | 469 | 1,907 | 2,345 | 3,283 | 9,535 | 13,349 | 16,415 | 66,745 | 93,443 | 127,769 | 467,215 | 638,845 | 894,383 | 4,471,915 | 6,260,681 | 31,303,405 |
| -1 | -5 | -7 | -35 | -49 | -67 | -245 | -335 | -469 | -1,907 | -2,345 | -3,283 | -9,535 | -13,349 | -16,415 | -66,745 | -93,443 | -127,769 | -467,215 | -638,845 | -894,383 | -4,471,915 | -6,260,681 | -31,303,405 |
Here are some more numbers to try:
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