A:
Positive:
1 x 3167047317 x 186296919 x 166686771 x 446063323 x 980511207 x 262391349 x 234771381 x 22933
Negative:
-1 x -31670473-17 x -1862969-19 x -1666867-71 x -446063-323 x -98051-1207 x -26239-1349 x -23477-1381 x -22933
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 31,670,473, 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 | 31,670,473 | |
| -1 | -31,670,473 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 31,670,473.
Example:
1 x 31,670,473 = 31,670,473
and
-1 x -31,670,473 = 31,670,473
Notice both answers equal 31,670,473
With that explanation out of the way, let's continue. Next, we take the number 31,670,473 and divide it by 2:
31,670,473 ÷ 2 = 15,835,236.5
If the quotient is a whole number, then 2 and 15,835,236.5 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 | 31,670,473 | |
| -1 | -31,670,473 |
Now, we try dividing 31,670,473 by 3:
31,670,473 ÷ 3 = 10,556,824.3333
If the quotient is a whole number, then 3 and 10,556,824.3333 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 | 31,670,473 | |
| -1 | -31,670,473 |
Let's try dividing by 4:
31,670,473 ÷ 4 = 7,917,618.25
If the quotient is a whole number, then 4 and 7,917,618.25 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 | 31,670,473 | |
| -1 | 31,670,473 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 71 | 323 | 1,207 | 1,349 | 1,381 | 22,933 | 23,477 | 26,239 | 98,051 | 446,063 | 1,666,867 | 1,862,969 | 31,670,473 |
| -1 | -17 | -19 | -71 | -323 | -1,207 | -1,349 | -1,381 | -22,933 | -23,477 | -26,239 | -98,051 | -446,063 | -1,666,867 | -1,862,969 | -31,670,473 |
Here are some more numbers to try:
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