A:
Positive:
1 x 152779255 x 305558513 x 117522525 x 61111729 x 52682565 x 235045145 x 105365325 x 47009377 x 40525725 x 210731621 x 94251885 x 8105
Negative:
-1 x -15277925-5 x -3055585-13 x -1175225-25 x -611117-29 x -526825-65 x -235045-145 x -105365-325 x -47009-377 x -40525-725 x -21073-1621 x -9425-1885 x -8105
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 15,277,925, 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 | 15,277,925 | |
| -1 | -15,277,925 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,277,925.
Example:
1 x 15,277,925 = 15,277,925
and
-1 x -15,277,925 = 15,277,925
Notice both answers equal 15,277,925
With that explanation out of the way, let's continue. Next, we take the number 15,277,925 and divide it by 2:
15,277,925 ÷ 2 = 7,638,962.5
If the quotient is a whole number, then 2 and 7,638,962.5 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 | 15,277,925 | |
| -1 | -15,277,925 |
Now, we try dividing 15,277,925 by 3:
15,277,925 ÷ 3 = 5,092,641.6667
If the quotient is a whole number, then 3 and 5,092,641.6667 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 | 15,277,925 | |
| -1 | -15,277,925 |
Let's try dividing by 4:
15,277,925 ÷ 4 = 3,819,481.25
If the quotient is a whole number, then 4 and 3,819,481.25 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 | 15,277,925 | |
| -1 | 15,277,925 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 29 | 65 | 145 | 325 | 377 | 725 | 1,621 | 1,885 | 8,105 | 9,425 | 21,073 | 40,525 | 47,009 | 105,365 | 235,045 | 526,825 | 611,117 | 1,175,225 | 3,055,585 | 15,277,925 |
| -1 | -5 | -13 | -25 | -29 | -65 | -145 | -325 | -377 | -725 | -1,621 | -1,885 | -8,105 | -9,425 | -21,073 | -40,525 | -47,009 | -105,365 | -235,045 | -526,825 | -611,117 | -1,175,225 | -3,055,585 | -15,277,925 |
Here are some more numbers to try:
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