A:
Positive:
1 x 8210865717 x 482992129 x 283133397 x 846481101 x 812957289 x 284113493 x 1665491649 x 497931717 x 478212813 x 291892929 x 280338381 x 9797
Negative:
-1 x -82108657-17 x -4829921-29 x -2831333-97 x -846481-101 x -812957-289 x -284113-493 x -166549-1649 x -49793-1717 x -47821-2813 x -29189-2929 x -28033-8381 x -9797
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 82,108,657, 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 | 82,108,657 | |
| -1 | -82,108,657 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 82,108,657.
Example:
1 x 82,108,657 = 82,108,657
and
-1 x -82,108,657 = 82,108,657
Notice both answers equal 82,108,657
With that explanation out of the way, let's continue. Next, we take the number 82,108,657 and divide it by 2:
82,108,657 ÷ 2 = 41,054,328.5
If the quotient is a whole number, then 2 and 41,054,328.5 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 | 82,108,657 | |
| -1 | -82,108,657 |
Now, we try dividing 82,108,657 by 3:
82,108,657 ÷ 3 = 27,369,552.3333
If the quotient is a whole number, then 3 and 27,369,552.3333 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 | 82,108,657 | |
| -1 | -82,108,657 |
Let's try dividing by 4:
82,108,657 ÷ 4 = 20,527,164.25
If the quotient is a whole number, then 4 and 20,527,164.25 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 | 82,108,657 | |
| -1 | 82,108,657 |
If you did it right, you will end up with this table:
| 1 | 17 | 29 | 97 | 101 | 289 | 493 | 1,649 | 1,717 | 2,813 | 2,929 | 8,381 | 9,797 | 28,033 | 29,189 | 47,821 | 49,793 | 166,549 | 284,113 | 812,957 | 846,481 | 2,831,333 | 4,829,921 | 82,108,657 |
| -1 | -17 | -29 | -97 | -101 | -289 | -493 | -1,649 | -1,717 | -2,813 | -2,929 | -8,381 | -9,797 | -28,033 | -29,189 | -47,821 | -49,793 | -166,549 | -284,113 | -812,957 | -846,481 | -2,831,333 | -4,829,921 | -82,108,657 |
Here are some more numbers to try:
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