A:
Positive:
1 x 542215855 x 1084431711 x 492923517 x 318950555 x 98584785 x 637901187 x 289955935 x 57991
Negative:
-1 x -54221585-5 x -10844317-11 x -4929235-17 x -3189505-55 x -985847-85 x -637901-187 x -289955-935 x -57991
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 54,221,585, 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 | 54,221,585 | |
| -1 | -54,221,585 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 54,221,585.
Example:
1 x 54,221,585 = 54,221,585
and
-1 x -54,221,585 = 54,221,585
Notice both answers equal 54,221,585
With that explanation out of the way, let's continue. Next, we take the number 54,221,585 and divide it by 2:
54,221,585 ÷ 2 = 27,110,792.5
If the quotient is a whole number, then 2 and 27,110,792.5 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 | 54,221,585 | |
| -1 | -54,221,585 |
Now, we try dividing 54,221,585 by 3:
54,221,585 ÷ 3 = 18,073,861.6667
If the quotient is a whole number, then 3 and 18,073,861.6667 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 | 54,221,585 | |
| -1 | -54,221,585 |
Let's try dividing by 4:
54,221,585 ÷ 4 = 13,555,396.25
If the quotient is a whole number, then 4 and 13,555,396.25 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 | 54,221,585 | |
| -1 | 54,221,585 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 17 | 55 | 85 | 187 | 935 | 57,991 | 289,955 | 637,901 | 985,847 | 3,189,505 | 4,929,235 | 10,844,317 | 54,221,585 |
| -1 | -5 | -11 | -17 | -55 | -85 | -187 | -935 | -57,991 | -289,955 | -637,901 | -985,847 | -3,189,505 | -4,929,235 | -10,844,317 | -54,221,585 |
Here are some more numbers to try:
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