A:
Positive:
1 x 30817741731 x 994120771 x 4340527163 x 1890659859 x 3587632201 x 1400175053 x 6098911573 x 26629
Negative:
-1 x -308177417-31 x -9941207-71 x -4340527-163 x -1890659-859 x -358763-2201 x -140017-5053 x -60989-11573 x -26629
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 308,177,417, 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 | 308,177,417 | |
| -1 | -308,177,417 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 308,177,417.
Example:
1 x 308,177,417 = 308,177,417
and
-1 x -308,177,417 = 308,177,417
Notice both answers equal 308,177,417
With that explanation out of the way, let's continue. Next, we take the number 308,177,417 and divide it by 2:
308,177,417 ÷ 2 = 154,088,708.5
If the quotient is a whole number, then 2 and 154,088,708.5 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 | 308,177,417 | |
| -1 | -308,177,417 |
Now, we try dividing 308,177,417 by 3:
308,177,417 ÷ 3 = 102,725,805.6667
If the quotient is a whole number, then 3 and 102,725,805.6667 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 | 308,177,417 | |
| -1 | -308,177,417 |
Let's try dividing by 4:
308,177,417 ÷ 4 = 77,044,354.25
If the quotient is a whole number, then 4 and 77,044,354.25 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 | 308,177,417 | |
| -1 | 308,177,417 |
If you did it right, you will end up with this table:
| 1 | 31 | 71 | 163 | 859 | 2,201 | 5,053 | 11,573 | 26,629 | 60,989 | 140,017 | 358,763 | 1,890,659 | 4,340,527 | 9,941,207 | 308,177,417 |
| -1 | -31 | -71 | -163 | -859 | -2,201 | -5,053 | -11,573 | -26,629 | -60,989 | -140,017 | -358,763 | -1,890,659 | -4,340,527 | -9,941,207 | -308,177,417 |
Here are some more numbers to try:
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