A:
Positive:
1 x 256830055 x 513660117 x 151076553 x 48458585 x 302153265 x 96917901 x 285054505 x 5701
Negative:
-1 x -25683005-5 x -5136601-17 x -1510765-53 x -484585-85 x -302153-265 x -96917-901 x -28505-4505 x -5701
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 25,683,005, 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 | 25,683,005 | |
| -1 | -25,683,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,683,005.
Example:
1 x 25,683,005 = 25,683,005
and
-1 x -25,683,005 = 25,683,005
Notice both answers equal 25,683,005
With that explanation out of the way, let's continue. Next, we take the number 25,683,005 and divide it by 2:
25,683,005 ÷ 2 = 12,841,502.5
If the quotient is a whole number, then 2 and 12,841,502.5 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 | 25,683,005 | |
| -1 | -25,683,005 |
Now, we try dividing 25,683,005 by 3:
25,683,005 ÷ 3 = 8,561,001.6667
If the quotient is a whole number, then 3 and 8,561,001.6667 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 | 25,683,005 | |
| -1 | -25,683,005 |
Let's try dividing by 4:
25,683,005 ÷ 4 = 6,420,751.25
If the quotient is a whole number, then 4 and 6,420,751.25 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 | 25,683,005 | |
| -1 | 25,683,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 53 | 85 | 265 | 901 | 4,505 | 5,701 | 28,505 | 96,917 | 302,153 | 484,585 | 1,510,765 | 5,136,601 | 25,683,005 |
| -1 | -5 | -17 | -53 | -85 | -265 | -901 | -4,505 | -5,701 | -28,505 | -96,917 | -302,153 | -484,585 | -1,510,765 | -5,136,601 | -25,683,005 |
Here are some more numbers to try:
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