A:
Positive:
1 x 6268883055 x 12537766179 x 7935295395 x 15870591063 x 5897351493 x 4198855315 x 1179477465 x 83977
Negative:
-1 x -626888305-5 x -125377661-79 x -7935295-395 x -1587059-1063 x -589735-1493 x -419885-5315 x -117947-7465 x -83977
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 626,888,305, 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 | 626,888,305 | |
| -1 | -626,888,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 626,888,305.
Example:
1 x 626,888,305 = 626,888,305
and
-1 x -626,888,305 = 626,888,305
Notice both answers equal 626,888,305
With that explanation out of the way, let's continue. Next, we take the number 626,888,305 and divide it by 2:
626,888,305 ÷ 2 = 313,444,152.5
If the quotient is a whole number, then 2 and 313,444,152.5 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 | 626,888,305 | |
| -1 | -626,888,305 |
Now, we try dividing 626,888,305 by 3:
626,888,305 ÷ 3 = 208,962,768.3333
If the quotient is a whole number, then 3 and 208,962,768.3333 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 | 626,888,305 | |
| -1 | -626,888,305 |
Let's try dividing by 4:
626,888,305 ÷ 4 = 156,722,076.25
If the quotient is a whole number, then 4 and 156,722,076.25 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 | 626,888,305 | |
| -1 | 626,888,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 79 | 395 | 1,063 | 1,493 | 5,315 | 7,465 | 83,977 | 117,947 | 419,885 | 589,735 | 1,587,059 | 7,935,295 | 125,377,661 | 626,888,305 |
| -1 | -5 | -79 | -395 | -1,063 | -1,493 | -5,315 | -7,465 | -83,977 | -117,947 | -419,885 | -589,735 | -1,587,059 | -7,935,295 | -125,377,661 | -626,888,305 |
Here are some more numbers to try:
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