A:
Positive:
1 x 838354155 x 1676708317 x 493149585 x 986299131 x 639965655 x 1279932227 x 376457529 x 11135
Negative:
-1 x -83835415-5 x -16767083-17 x -4931495-85 x -986299-131 x -639965-655 x -127993-2227 x -37645-7529 x -11135
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 83,835,415, 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 | 83,835,415 | |
| -1 | -83,835,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 83,835,415.
Example:
1 x 83,835,415 = 83,835,415
and
-1 x -83,835,415 = 83,835,415
Notice both answers equal 83,835,415
With that explanation out of the way, let's continue. Next, we take the number 83,835,415 and divide it by 2:
83,835,415 ÷ 2 = 41,917,707.5
If the quotient is a whole number, then 2 and 41,917,707.5 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 | 83,835,415 | |
| -1 | -83,835,415 |
Now, we try dividing 83,835,415 by 3:
83,835,415 ÷ 3 = 27,945,138.3333
If the quotient is a whole number, then 3 and 27,945,138.3333 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 | 83,835,415 | |
| -1 | -83,835,415 |
Let's try dividing by 4:
83,835,415 ÷ 4 = 20,958,853.75
If the quotient is a whole number, then 4 and 20,958,853.75 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 | 83,835,415 | |
| -1 | 83,835,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 131 | 655 | 2,227 | 7,529 | 11,135 | 37,645 | 127,993 | 639,965 | 986,299 | 4,931,495 | 16,767,083 | 83,835,415 |
| -1 | -5 | -17 | -85 | -131 | -655 | -2,227 | -7,529 | -11,135 | -37,645 | -127,993 | -639,965 | -986,299 | -4,931,495 | -16,767,083 | -83,835,415 |
Here are some more numbers to try:
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