A:
Positive:
1 x 64013755 x 128027525 x 25605583 x 77125125 x 51211415 x 15425617 x 103752075 x 3085
Negative:
-1 x -6401375-5 x -1280275-25 x -256055-83 x -77125-125 x -51211-415 x -15425-617 x -10375-2075 x -3085
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 6,401,375, 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 | 6,401,375 | |
| -1 | -6,401,375 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 6,401,375.
Example:
1 x 6,401,375 = 6,401,375
and
-1 x -6,401,375 = 6,401,375
Notice both answers equal 6,401,375
With that explanation out of the way, let's continue. Next, we take the number 6,401,375 and divide it by 2:
6,401,375 ÷ 2 = 3,200,687.5
If the quotient is a whole number, then 2 and 3,200,687.5 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 | 6,401,375 | |
| -1 | -6,401,375 |
Now, we try dividing 6,401,375 by 3:
6,401,375 ÷ 3 = 2,133,791.6667
If the quotient is a whole number, then 3 and 2,133,791.6667 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 | 6,401,375 | |
| -1 | -6,401,375 |
Let's try dividing by 4:
6,401,375 ÷ 4 = 1,600,343.75
If the quotient is a whole number, then 4 and 1,600,343.75 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 | 6,401,375 | |
| -1 | 6,401,375 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 83 | 125 | 415 | 617 | 2,075 | 3,085 | 10,375 | 15,425 | 51,211 | 77,125 | 256,055 | 1,280,275 | 6,401,375 |
| -1 | -5 | -25 | -83 | -125 | -415 | -617 | -2,075 | -3,085 | -10,375 | -15,425 | -51,211 | -77,125 | -256,055 | -1,280,275 | -6,401,375 |
Here are some more numbers to try:
Try the factor calculator