A:
Positive:
1 x 3925615337 x 5608021913 x 3019704191 x 4313863587 x 6687594109 x 955377349 x 534177631 x 51443
Negative:
-1 x -392561533-7 x -56080219-13 x -30197041-91 x -4313863-587 x -668759-4109 x -95537-7349 x -53417-7631 x -51443
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 392,561,533, 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 | 392,561,533 | |
| -1 | -392,561,533 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 392,561,533.
Example:
1 x 392,561,533 = 392,561,533
and
-1 x -392,561,533 = 392,561,533
Notice both answers equal 392,561,533
With that explanation out of the way, let's continue. Next, we take the number 392,561,533 and divide it by 2:
392,561,533 ÷ 2 = 196,280,766.5
If the quotient is a whole number, then 2 and 196,280,766.5 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 | 392,561,533 | |
| -1 | -392,561,533 |
Now, we try dividing 392,561,533 by 3:
392,561,533 ÷ 3 = 130,853,844.3333
If the quotient is a whole number, then 3 and 130,853,844.3333 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 | 392,561,533 | |
| -1 | -392,561,533 |
Let's try dividing by 4:
392,561,533 ÷ 4 = 98,140,383.25
If the quotient is a whole number, then 4 and 98,140,383.25 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 | 392,561,533 | |
| -1 | 392,561,533 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 587 | 4,109 | 7,349 | 7,631 | 51,443 | 53,417 | 95,537 | 668,759 | 4,313,863 | 30,197,041 | 56,080,219 | 392,561,533 |
| -1 | -7 | -13 | -91 | -587 | -4,109 | -7,349 | -7,631 | -51,443 | -53,417 | -95,537 | -668,759 | -4,313,863 | -30,197,041 | -56,080,219 | -392,561,533 |
Here are some more numbers to try:
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