A:
Positive:
1 x 2560574755 x 5121149525 x 1024229943 x 5954825215 x 1190965313 x 818075761 x 3364751075 x 2381931565 x 1636153805 x 672957825 x 3272313459 x 19025
Negative:
-1 x -256057475-5 x -51211495-25 x -10242299-43 x -5954825-215 x -1190965-313 x -818075-761 x -336475-1075 x -238193-1565 x -163615-3805 x -67295-7825 x -32723-13459 x -19025
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 256,057,475, 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 | 256,057,475 | |
| -1 | -256,057,475 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 256,057,475.
Example:
1 x 256,057,475 = 256,057,475
and
-1 x -256,057,475 = 256,057,475
Notice both answers equal 256,057,475
With that explanation out of the way, let's continue. Next, we take the number 256,057,475 and divide it by 2:
256,057,475 ÷ 2 = 128,028,737.5
If the quotient is a whole number, then 2 and 128,028,737.5 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 | 256,057,475 | |
| -1 | -256,057,475 |
Now, we try dividing 256,057,475 by 3:
256,057,475 ÷ 3 = 85,352,491.6667
If the quotient is a whole number, then 3 and 85,352,491.6667 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 | 256,057,475 | |
| -1 | -256,057,475 |
Let's try dividing by 4:
256,057,475 ÷ 4 = 64,014,368.75
If the quotient is a whole number, then 4 and 64,014,368.75 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 | 256,057,475 | |
| -1 | 256,057,475 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 43 | 215 | 313 | 761 | 1,075 | 1,565 | 3,805 | 7,825 | 13,459 | 19,025 | 32,723 | 67,295 | 163,615 | 238,193 | 336,475 | 818,075 | 1,190,965 | 5,954,825 | 10,242,299 | 51,211,495 | 256,057,475 |
| -1 | -5 | -25 | -43 | -215 | -313 | -761 | -1,075 | -1,565 | -3,805 | -7,825 | -13,459 | -19,025 | -32,723 | -67,295 | -163,615 | -238,193 | -336,475 | -818,075 | -1,190,965 | -5,954,825 | -10,242,299 | -51,211,495 | -256,057,475 |
Here are some more numbers to try:
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