A:
Positive:
1 x 8384012777 x 11977161119 x 4412638373 x 11484949133 x 6303769511 x 16407071387 x 6044719709 x 86353
Negative:
-1 x -838401277-7 x -119771611-19 x -44126383-73 x -11484949-133 x -6303769-511 x -1640707-1387 x -604471-9709 x -86353
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 838,401,277, 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 | 838,401,277 | |
| -1 | -838,401,277 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 838,401,277.
Example:
1 x 838,401,277 = 838,401,277
and
-1 x -838,401,277 = 838,401,277
Notice both answers equal 838,401,277
With that explanation out of the way, let's continue. Next, we take the number 838,401,277 and divide it by 2:
838,401,277 ÷ 2 = 419,200,638.5
If the quotient is a whole number, then 2 and 419,200,638.5 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 | 838,401,277 | |
| -1 | -838,401,277 |
Now, we try dividing 838,401,277 by 3:
838,401,277 ÷ 3 = 279,467,092.3333
If the quotient is a whole number, then 3 and 279,467,092.3333 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 | 838,401,277 | |
| -1 | -838,401,277 |
Let's try dividing by 4:
838,401,277 ÷ 4 = 209,600,319.25
If the quotient is a whole number, then 4 and 209,600,319.25 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 | 838,401,277 | |
| -1 | 838,401,277 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 73 | 133 | 511 | 1,387 | 9,709 | 86,353 | 604,471 | 1,640,707 | 6,303,769 | 11,484,949 | 44,126,383 | 119,771,611 | 838,401,277 |
| -1 | -7 | -19 | -73 | -133 | -511 | -1,387 | -9,709 | -86,353 | -604,471 | -1,640,707 | -6,303,769 | -11,484,949 | -44,126,383 | -119,771,611 | -838,401,277 |
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