A:
Positive:
1 x 6863755 x 13727517 x 4037519 x 3612525 x 2745585 x 807595 x 7225125 x 5491289 x 2375323 x 2125425 x 1615475 x 1445
Negative:
-1 x -686375-5 x -137275-17 x -40375-19 x -36125-25 x -27455-85 x -8075-95 x -7225-125 x -5491-289 x -2375-323 x -2125-425 x -1615-475 x -1445
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 686,375, 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 | 686,375 | |
| -1 | -686,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 686,375.
Example:
1 x 686,375 = 686,375
and
-1 x -686,375 = 686,375
Notice both answers equal 686,375
With that explanation out of the way, let's continue. Next, we take the number 686,375 and divide it by 2:
686,375 ÷ 2 = 343,187.5
If the quotient is a whole number, then 2 and 343,187.5 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 | 686,375 | |
| -1 | -686,375 |
Now, we try dividing 686,375 by 3:
686,375 ÷ 3 = 228,791.6667
If the quotient is a whole number, then 3 and 228,791.6667 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 | 686,375 | |
| -1 | -686,375 |
Let's try dividing by 4:
686,375 ÷ 4 = 171,593.75
If the quotient is a whole number, then 4 and 171,593.75 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 | 686,375 | |
| -1 | 686,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 25 | 85 | 95 | 125 | 289 | 323 | 425 | 475 | 1,445 | 1,615 | 2,125 | 2,375 | 5,491 | 7,225 | 8,075 | 27,455 | 36,125 | 40,375 | 137,275 | 686,375 |
| -1 | -5 | -17 | -19 | -25 | -85 | -95 | -125 | -289 | -323 | -425 | -475 | -1,445 | -1,615 | -2,125 | -2,375 | -5,491 | -7,225 | -8,075 | -27,455 | -36,125 | -40,375 | -137,275 | -686,375 |
Here are some more numbers to try:
Try the factor calculator