A:
Positive:
1 x 1271514255 x 2543028525 x 508605737 x 3436525101 x 1258925185 x 687305505 x 251785925 x 1374611361 x 934252525 x 503573737 x 340256805 x 18685
Negative:
-1 x -127151425-5 x -25430285-25 x -5086057-37 x -3436525-101 x -1258925-185 x -687305-505 x -251785-925 x -137461-1361 x -93425-2525 x -50357-3737 x -34025-6805 x -18685
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 127,151,425, 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 | 127,151,425 | |
| -1 | -127,151,425 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 127,151,425.
Example:
1 x 127,151,425 = 127,151,425
and
-1 x -127,151,425 = 127,151,425
Notice both answers equal 127,151,425
With that explanation out of the way, let's continue. Next, we take the number 127,151,425 and divide it by 2:
127,151,425 ÷ 2 = 63,575,712.5
If the quotient is a whole number, then 2 and 63,575,712.5 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 | 127,151,425 | |
| -1 | -127,151,425 |
Now, we try dividing 127,151,425 by 3:
127,151,425 ÷ 3 = 42,383,808.3333
If the quotient is a whole number, then 3 and 42,383,808.3333 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 | 127,151,425 | |
| -1 | -127,151,425 |
Let's try dividing by 4:
127,151,425 ÷ 4 = 31,787,856.25
If the quotient is a whole number, then 4 and 31,787,856.25 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 | 127,151,425 | |
| -1 | 127,151,425 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 37 | 101 | 185 | 505 | 925 | 1,361 | 2,525 | 3,737 | 6,805 | 18,685 | 34,025 | 50,357 | 93,425 | 137,461 | 251,785 | 687,305 | 1,258,925 | 3,436,525 | 5,086,057 | 25,430,285 | 127,151,425 |
| -1 | -5 | -25 | -37 | -101 | -185 | -505 | -925 | -1,361 | -2,525 | -3,737 | -6,805 | -18,685 | -34,025 | -50,357 | -93,425 | -137,461 | -251,785 | -687,305 | -1,258,925 | -3,436,525 | -5,086,057 | -25,430,285 | -127,151,425 |
Here are some more numbers to try:
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