A:
Positive:
1 x 8532197311 x 775654323 x 370965129 x 2942137253 x 337241319 x 267467401 x 212773667 x 127919841 x 1014534411 x 193437337 x 116299223 x 9251
Negative:
-1 x -85321973-11 x -7756543-23 x -3709651-29 x -2942137-253 x -337241-319 x -267467-401 x -212773-667 x -127919-841 x -101453-4411 x -19343-7337 x -11629-9223 x -9251
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 85,321,973, 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 | 85,321,973 | |
| -1 | -85,321,973 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,321,973.
Example:
1 x 85,321,973 = 85,321,973
and
-1 x -85,321,973 = 85,321,973
Notice both answers equal 85,321,973
With that explanation out of the way, let's continue. Next, we take the number 85,321,973 and divide it by 2:
85,321,973 ÷ 2 = 42,660,986.5
If the quotient is a whole number, then 2 and 42,660,986.5 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 | 85,321,973 | |
| -1 | -85,321,973 |
Now, we try dividing 85,321,973 by 3:
85,321,973 ÷ 3 = 28,440,657.6667
If the quotient is a whole number, then 3 and 28,440,657.6667 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 | 85,321,973 | |
| -1 | -85,321,973 |
Let's try dividing by 4:
85,321,973 ÷ 4 = 21,330,493.25
If the quotient is a whole number, then 4 and 21,330,493.25 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 | 85,321,973 | |
| -1 | 85,321,973 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 29 | 253 | 319 | 401 | 667 | 841 | 4,411 | 7,337 | 9,223 | 9,251 | 11,629 | 19,343 | 101,453 | 127,919 | 212,773 | 267,467 | 337,241 | 2,942,137 | 3,709,651 | 7,756,543 | 85,321,973 |
| -1 | -11 | -23 | -29 | -253 | -319 | -401 | -667 | -841 | -4,411 | -7,337 | -9,223 | -9,251 | -11,629 | -19,343 | -101,453 | -127,919 | -212,773 | -267,467 | -337,241 | -2,942,137 | -3,709,651 | -7,756,543 | -85,321,973 |
Here are some more numbers to try:
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