A:
Positive:
1 x 316830717 x 4526153127 x 249473157 x 201803227 x 139573889 x 356391099 x 288291589 x 19939
Negative:
-1 x -31683071-7 x -4526153-127 x -249473-157 x -201803-227 x -139573-889 x -35639-1099 x -28829-1589 x -19939
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 31,683,071, 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 | 31,683,071 | |
| -1 | -31,683,071 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,683,071.
Example:
1 x 31,683,071 = 31,683,071
and
-1 x -31,683,071 = 31,683,071
Notice both answers equal 31,683,071
With that explanation out of the way, let's continue. Next, we take the number 31,683,071 and divide it by 2:
31,683,071 ÷ 2 = 15,841,535.5
If the quotient is a whole number, then 2 and 15,841,535.5 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 | 31,683,071 | |
| -1 | -31,683,071 |
Now, we try dividing 31,683,071 by 3:
31,683,071 ÷ 3 = 10,561,023.6667
If the quotient is a whole number, then 3 and 10,561,023.6667 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 | 31,683,071 | |
| -1 | -31,683,071 |
Let's try dividing by 4:
31,683,071 ÷ 4 = 7,920,767.75
If the quotient is a whole number, then 4 and 7,920,767.75 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 | 31,683,071 | |
| -1 | 31,683,071 |
If you did it right, you will end up with this table:
| 1 | 7 | 127 | 157 | 227 | 889 | 1,099 | 1,589 | 19,939 | 28,829 | 35,639 | 139,573 | 201,803 | 249,473 | 4,526,153 | 31,683,071 |
| -1 | -7 | -127 | -157 | -227 | -889 | -1,099 | -1,589 | -19,939 | -28,829 | -35,639 | -139,573 | -201,803 | -249,473 | -4,526,153 | -31,683,071 |
Here are some more numbers to try:
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