A:
Positive:
1 x 824131455 x 1648262953 x 1554965265 x 310993353 x 233465881 x 935451765 x 466934405 x 18709
Negative:
-1 x -82413145-5 x -16482629-53 x -1554965-265 x -310993-353 x -233465-881 x -93545-1765 x -46693-4405 x -18709
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 82,413,145, 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 | 82,413,145 | |
| -1 | -82,413,145 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 82,413,145.
Example:
1 x 82,413,145 = 82,413,145
and
-1 x -82,413,145 = 82,413,145
Notice both answers equal 82,413,145
With that explanation out of the way, let's continue. Next, we take the number 82,413,145 and divide it by 2:
82,413,145 ÷ 2 = 41,206,572.5
If the quotient is a whole number, then 2 and 41,206,572.5 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 | 82,413,145 | |
| -1 | -82,413,145 |
Now, we try dividing 82,413,145 by 3:
82,413,145 ÷ 3 = 27,471,048.3333
If the quotient is a whole number, then 3 and 27,471,048.3333 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 | 82,413,145 | |
| -1 | -82,413,145 |
Let's try dividing by 4:
82,413,145 ÷ 4 = 20,603,286.25
If the quotient is a whole number, then 4 and 20,603,286.25 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 | 82,413,145 | |
| -1 | 82,413,145 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 265 | 353 | 881 | 1,765 | 4,405 | 18,709 | 46,693 | 93,545 | 233,465 | 310,993 | 1,554,965 | 16,482,629 | 82,413,145 |
| -1 | -5 | -53 | -265 | -353 | -881 | -1,765 | -4,405 | -18,709 | -46,693 | -93,545 | -233,465 | -310,993 | -1,554,965 | -16,482,629 | -82,413,145 |
Here are some more numbers to try:
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