A:
Positive:
1 x 304031777 x 434331149 x 620473137 x 221921343 x 88639647 x 46991959 x 317034529 x 6713
Negative:
-1 x -30403177-7 x -4343311-49 x -620473-137 x -221921-343 x -88639-647 x -46991-959 x -31703-4529 x -6713
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 30,403,177, 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 | 30,403,177 | |
| -1 | -30,403,177 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,403,177.
Example:
1 x 30,403,177 = 30,403,177
and
-1 x -30,403,177 = 30,403,177
Notice both answers equal 30,403,177
With that explanation out of the way, let's continue. Next, we take the number 30,403,177 and divide it by 2:
30,403,177 ÷ 2 = 15,201,588.5
If the quotient is a whole number, then 2 and 15,201,588.5 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 | 30,403,177 | |
| -1 | -30,403,177 |
Now, we try dividing 30,403,177 by 3:
30,403,177 ÷ 3 = 10,134,392.3333
If the quotient is a whole number, then 3 and 10,134,392.3333 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 | 30,403,177 | |
| -1 | -30,403,177 |
Let's try dividing by 4:
30,403,177 ÷ 4 = 7,600,794.25
If the quotient is a whole number, then 4 and 7,600,794.25 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 | 30,403,177 | |
| -1 | 30,403,177 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 137 | 343 | 647 | 959 | 4,529 | 6,713 | 31,703 | 46,991 | 88,639 | 221,921 | 620,473 | 4,343,311 | 30,403,177 |
| -1 | -7 | -49 | -137 | -343 | -647 | -959 | -4,529 | -6,713 | -31,703 | -46,991 | -88,639 | -221,921 | -620,473 | -4,343,311 | -30,403,177 |
Here are some more numbers to try:
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