A:
Positive:
1 x 853231617 x 1218902311 x 775665149 x 174128977 x 1108093311 x 274351509 x 167629539 x 1582992177 x 391933421 x 249413563 x 239475599 x 15239
Negative:
-1 x -85323161-7 x -12189023-11 x -7756651-49 x -1741289-77 x -1108093-311 x -274351-509 x -167629-539 x -158299-2177 x -39193-3421 x -24941-3563 x -23947-5599 x -15239
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 85,323,161, 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 | 85,323,161 | |
| -1 | -85,323,161 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,323,161.
Example:
1 x 85,323,161 = 85,323,161
and
-1 x -85,323,161 = 85,323,161
Notice both answers equal 85,323,161
With that explanation out of the way, let's continue. Next, we take the number 85,323,161 and divide it by 2:
85,323,161 ÷ 2 = 42,661,580.5
If the quotient is a whole number, then 2 and 42,661,580.5 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 | 85,323,161 | |
| -1 | -85,323,161 |
Now, we try dividing 85,323,161 by 3:
85,323,161 ÷ 3 = 28,441,053.6667
If the quotient is a whole number, then 3 and 28,441,053.6667 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 | 85,323,161 | |
| -1 | -85,323,161 |
Let's try dividing by 4:
85,323,161 ÷ 4 = 21,330,790.25
If the quotient is a whole number, then 4 and 21,330,790.25 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 | 85,323,161 | |
| -1 | 85,323,161 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 49 | 77 | 311 | 509 | 539 | 2,177 | 3,421 | 3,563 | 5,599 | 15,239 | 23,947 | 24,941 | 39,193 | 158,299 | 167,629 | 274,351 | 1,108,093 | 1,741,289 | 7,756,651 | 12,189,023 | 85,323,161 |
| -1 | -7 | -11 | -49 | -77 | -311 | -509 | -539 | -2,177 | -3,421 | -3,563 | -5,599 | -15,239 | -23,947 | -24,941 | -39,193 | -158,299 | -167,629 | -274,351 | -1,108,093 | -1,741,289 | -7,756,651 | -12,189,023 | -85,323,161 |
Here are some more numbers to try:
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