A:
Positive:
1 x 256221655 x 512443319 x 134853595 x 269707173 x 148105865 x 296211559 x 164353287 x 7795
Negative:
-1 x -25622165-5 x -5124433-19 x -1348535-95 x -269707-173 x -148105-865 x -29621-1559 x -16435-3287 x -7795
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 25,622,165, 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 | 25,622,165 | |
| -1 | -25,622,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 25,622,165.
Example:
1 x 25,622,165 = 25,622,165
and
-1 x -25,622,165 = 25,622,165
Notice both answers equal 25,622,165
With that explanation out of the way, let's continue. Next, we take the number 25,622,165 and divide it by 2:
25,622,165 ÷ 2 = 12,811,082.5
If the quotient is a whole number, then 2 and 12,811,082.5 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 | 25,622,165 | |
| -1 | -25,622,165 |
Now, we try dividing 25,622,165 by 3:
25,622,165 ÷ 3 = 8,540,721.6667
If the quotient is a whole number, then 3 and 8,540,721.6667 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 | 25,622,165 | |
| -1 | -25,622,165 |
Let's try dividing by 4:
25,622,165 ÷ 4 = 6,405,541.25
If the quotient is a whole number, then 4 and 6,405,541.25 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 | 25,622,165 | |
| -1 | 25,622,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 95 | 173 | 865 | 1,559 | 3,287 | 7,795 | 16,435 | 29,621 | 148,105 | 269,707 | 1,348,535 | 5,124,433 | 25,622,165 |
| -1 | -5 | -19 | -95 | -173 | -865 | -1,559 | -3,287 | -7,795 | -16,435 | -29,621 | -148,105 | -269,707 | -1,348,535 | -5,124,433 | -25,622,165 |
Here are some more numbers to try:
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