A:
Positive:
1 x 830517055 x 1661034111 x 755015543 x 193143555 x 1510031215 x 386287473 x 1755852365 x 35117
Negative:
-1 x -83051705-5 x -16610341-11 x -7550155-43 x -1931435-55 x -1510031-215 x -386287-473 x -175585-2365 x -35117
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 83,051,705, 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 | 83,051,705 | |
| -1 | -83,051,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 83,051,705.
Example:
1 x 83,051,705 = 83,051,705
and
-1 x -83,051,705 = 83,051,705
Notice both answers equal 83,051,705
With that explanation out of the way, let's continue. Next, we take the number 83,051,705 and divide it by 2:
83,051,705 ÷ 2 = 41,525,852.5
If the quotient is a whole number, then 2 and 41,525,852.5 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 | 83,051,705 | |
| -1 | -83,051,705 |
Now, we try dividing 83,051,705 by 3:
83,051,705 ÷ 3 = 27,683,901.6667
If the quotient is a whole number, then 3 and 27,683,901.6667 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 | 83,051,705 | |
| -1 | -83,051,705 |
Let's try dividing by 4:
83,051,705 ÷ 4 = 20,762,926.25
If the quotient is a whole number, then 4 and 20,762,926.25 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 | 83,051,705 | |
| -1 | 83,051,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 43 | 55 | 215 | 473 | 2,365 | 35,117 | 175,585 | 386,287 | 1,510,031 | 1,931,435 | 7,550,155 | 16,610,341 | 83,051,705 |
| -1 | -5 | -11 | -43 | -55 | -215 | -473 | -2,365 | -35,117 | -175,585 | -386,287 | -1,510,031 | -1,931,435 | -7,550,155 | -16,610,341 | -83,051,705 |
Here are some more numbers to try:
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