A:
Positive:
1 x 3160777319 x 166356723 x 1374251151 x 209323437 x 72329479 x 659872869 x 110173473 x 9101
Negative:
-1 x -31607773-19 x -1663567-23 x -1374251-151 x -209323-437 x -72329-479 x -65987-2869 x -11017-3473 x -9101
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 31,607,773, 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 | 31,607,773 | |
| -1 | -31,607,773 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,607,773.
Example:
1 x 31,607,773 = 31,607,773
and
-1 x -31,607,773 = 31,607,773
Notice both answers equal 31,607,773
With that explanation out of the way, let's continue. Next, we take the number 31,607,773 and divide it by 2:
31,607,773 ÷ 2 = 15,803,886.5
If the quotient is a whole number, then 2 and 15,803,886.5 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 | 31,607,773 | |
| -1 | -31,607,773 |
Now, we try dividing 31,607,773 by 3:
31,607,773 ÷ 3 = 10,535,924.3333
If the quotient is a whole number, then 3 and 10,535,924.3333 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 | 31,607,773 | |
| -1 | -31,607,773 |
Let's try dividing by 4:
31,607,773 ÷ 4 = 7,901,943.25
If the quotient is a whole number, then 4 and 7,901,943.25 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 | 31,607,773 | |
| -1 | 31,607,773 |
If you did it right, you will end up with this table:
| 1 | 19 | 23 | 151 | 437 | 479 | 2,869 | 3,473 | 9,101 | 11,017 | 65,987 | 72,329 | 209,323 | 1,374,251 | 1,663,567 | 31,607,773 |
| -1 | -19 | -23 | -151 | -437 | -479 | -2,869 | -3,473 | -9,101 | -11,017 | -65,987 | -72,329 | -209,323 | -1,374,251 | -1,663,567 | -31,607,773 |
Here are some more numbers to try:
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