A:
Positive:
1 x 253032655 x 506065313 x 194640565 x 389281193 x 131105965 x 262212017 x 125452509 x 10085
Negative:
-1 x -25303265-5 x -5060653-13 x -1946405-65 x -389281-193 x -131105-965 x -26221-2017 x -12545-2509 x -10085
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 25,303,265, 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 | 25,303,265 | |
| -1 | -25,303,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,303,265.
Example:
1 x 25,303,265 = 25,303,265
and
-1 x -25,303,265 = 25,303,265
Notice both answers equal 25,303,265
With that explanation out of the way, let's continue. Next, we take the number 25,303,265 and divide it by 2:
25,303,265 ÷ 2 = 12,651,632.5
If the quotient is a whole number, then 2 and 12,651,632.5 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 | 25,303,265 | |
| -1 | -25,303,265 |
Now, we try dividing 25,303,265 by 3:
25,303,265 ÷ 3 = 8,434,421.6667
If the quotient is a whole number, then 3 and 8,434,421.6667 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 | 25,303,265 | |
| -1 | -25,303,265 |
Let's try dividing by 4:
25,303,265 ÷ 4 = 6,325,816.25
If the quotient is a whole number, then 4 and 6,325,816.25 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 | 25,303,265 | |
| -1 | 25,303,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 193 | 965 | 2,017 | 2,509 | 10,085 | 12,545 | 26,221 | 131,105 | 389,281 | 1,946,405 | 5,060,653 | 25,303,265 |
| -1 | -5 | -13 | -65 | -193 | -965 | -2,017 | -2,509 | -10,085 | -12,545 | -26,221 | -131,105 | -389,281 | -1,946,405 | -5,060,653 | -25,303,265 |
Here are some more numbers to try:
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