A:
Positive:
1 x 157873755 x 315747525 x 63149553 x 297875125 x 126299265 x 595751325 x 119152383 x 6625
Negative:
-1 x -15787375-5 x -3157475-25 x -631495-53 x -297875-125 x -126299-265 x -59575-1325 x -11915-2383 x -6625
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 15,787,375, 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 | 15,787,375 | |
| -1 | -15,787,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,787,375.
Example:
1 x 15,787,375 = 15,787,375
and
-1 x -15,787,375 = 15,787,375
Notice both answers equal 15,787,375
With that explanation out of the way, let's continue. Next, we take the number 15,787,375 and divide it by 2:
15,787,375 ÷ 2 = 7,893,687.5
If the quotient is a whole number, then 2 and 7,893,687.5 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 | 15,787,375 | |
| -1 | -15,787,375 |
Now, we try dividing 15,787,375 by 3:
15,787,375 ÷ 3 = 5,262,458.3333
If the quotient is a whole number, then 3 and 5,262,458.3333 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 | 15,787,375 | |
| -1 | -15,787,375 |
Let's try dividing by 4:
15,787,375 ÷ 4 = 3,946,843.75
If the quotient is a whole number, then 4 and 3,946,843.75 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 | 15,787,375 | |
| -1 | 15,787,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 53 | 125 | 265 | 1,325 | 2,383 | 6,625 | 11,915 | 59,575 | 126,299 | 297,875 | 631,495 | 3,157,475 | 15,787,375 |
| -1 | -5 | -25 | -53 | -125 | -265 | -1,325 | -2,383 | -6,625 | -11,915 | -59,575 | -126,299 | -297,875 | -631,495 | -3,157,475 | -15,787,375 |
Here are some more numbers to try:
Try the factor calculator