A:
Positive:
1 x 302148777 x 431641111 x 274680777 x 39240189 x 339493623 x 48499979 x 308634409 x 6853
Negative:
-1 x -30214877-7 x -4316411-11 x -2746807-77 x -392401-89 x -339493-623 x -48499-979 x -30863-4409 x -6853
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 30,214,877, 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 | 30,214,877 | |
| -1 | -30,214,877 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 30,214,877.
Example:
1 x 30,214,877 = 30,214,877
and
-1 x -30,214,877 = 30,214,877
Notice both answers equal 30,214,877
With that explanation out of the way, let's continue. Next, we take the number 30,214,877 and divide it by 2:
30,214,877 ÷ 2 = 15,107,438.5
If the quotient is a whole number, then 2 and 15,107,438.5 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 | 30,214,877 | |
| -1 | -30,214,877 |
Now, we try dividing 30,214,877 by 3:
30,214,877 ÷ 3 = 10,071,625.6667
If the quotient is a whole number, then 3 and 10,071,625.6667 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 | 30,214,877 | |
| -1 | -30,214,877 |
Let's try dividing by 4:
30,214,877 ÷ 4 = 7,553,719.25
If the quotient is a whole number, then 4 and 7,553,719.25 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 | 30,214,877 | |
| -1 | 30,214,877 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 89 | 623 | 979 | 4,409 | 6,853 | 30,863 | 48,499 | 339,493 | 392,401 | 2,746,807 | 4,316,411 | 30,214,877 |
| -1 | -7 | -11 | -77 | -89 | -623 | -979 | -4,409 | -6,853 | -30,863 | -48,499 | -339,493 | -392,401 | -2,746,807 | -4,316,411 | -30,214,877 |
Here are some more numbers to try:
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