A:
Positive:
1 x 838369455 x 1676738917 x 493158585 x 986317613 x 1367651609 x 521053065 x 273538045 x 10421
Negative:
-1 x -83836945-5 x -16767389-17 x -4931585-85 x -986317-613 x -136765-1609 x -52105-3065 x -27353-8045 x -10421
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 83,836,945, 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 | 83,836,945 | |
| -1 | -83,836,945 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 83,836,945.
Example:
1 x 83,836,945 = 83,836,945
and
-1 x -83,836,945 = 83,836,945
Notice both answers equal 83,836,945
With that explanation out of the way, let's continue. Next, we take the number 83,836,945 and divide it by 2:
83,836,945 ÷ 2 = 41,918,472.5
If the quotient is a whole number, then 2 and 41,918,472.5 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 | 83,836,945 | |
| -1 | -83,836,945 |
Now, we try dividing 83,836,945 by 3:
83,836,945 ÷ 3 = 27,945,648.3333
If the quotient is a whole number, then 3 and 27,945,648.3333 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 | 83,836,945 | |
| -1 | -83,836,945 |
Let's try dividing by 4:
83,836,945 ÷ 4 = 20,959,236.25
If the quotient is a whole number, then 4 and 20,959,236.25 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 | 83,836,945 | |
| -1 | 83,836,945 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 613 | 1,609 | 3,065 | 8,045 | 10,421 | 27,353 | 52,105 | 136,765 | 986,317 | 4,931,585 | 16,767,389 | 83,836,945 |
| -1 | -5 | -17 | -85 | -613 | -1,609 | -3,065 | -8,045 | -10,421 | -27,353 | -52,105 | -136,765 | -986,317 | -4,931,585 | -16,767,389 | -83,836,945 |
Here are some more numbers to try:
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