A:
Positive:
1 x 30740515143 x 7148957127 x 2420513181 x 1698371311 x 9884415461 x 562917783 x 3949713373 x 22987
Negative:
-1 x -307405151-43 x -7148957-127 x -2420513-181 x -1698371-311 x -988441-5461 x -56291-7783 x -39497-13373 x -22987
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 307,405,151, 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 | 307,405,151 | |
| -1 | -307,405,151 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 307,405,151.
Example:
1 x 307,405,151 = 307,405,151
and
-1 x -307,405,151 = 307,405,151
Notice both answers equal 307,405,151
With that explanation out of the way, let's continue. Next, we take the number 307,405,151 and divide it by 2:
307,405,151 ÷ 2 = 153,702,575.5
If the quotient is a whole number, then 2 and 153,702,575.5 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 | 307,405,151 | |
| -1 | -307,405,151 |
Now, we try dividing 307,405,151 by 3:
307,405,151 ÷ 3 = 102,468,383.6667
If the quotient is a whole number, then 3 and 102,468,383.6667 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 | 307,405,151 | |
| -1 | -307,405,151 |
Let's try dividing by 4:
307,405,151 ÷ 4 = 76,851,287.75
If the quotient is a whole number, then 4 and 76,851,287.75 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 | 307,405,151 | |
| -1 | 307,405,151 |
If you did it right, you will end up with this table:
| 1 | 43 | 127 | 181 | 311 | 5,461 | 7,783 | 13,373 | 22,987 | 39,497 | 56,291 | 988,441 | 1,698,371 | 2,420,513 | 7,148,957 | 307,405,151 |
| -1 | -43 | -127 | -181 | -311 | -5,461 | -7,783 | -13,373 | -22,987 | -39,497 | -56,291 | -988,441 | -1,698,371 | -2,420,513 | -7,148,957 | -307,405,151 |
Here are some more numbers to try:
Try the factor calculator