A:
Positive:
1 x 212277355 x 424554723 x 922945115 x 184589197 x 107755937 x 22655985 x 215514531 x 4685
Negative:
-1 x -21227735-5 x -4245547-23 x -922945-115 x -184589-197 x -107755-937 x -22655-985 x -21551-4531 x -4685
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 21,227,735, 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 | 21,227,735 | |
| -1 | -21,227,735 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,227,735.
Example:
1 x 21,227,735 = 21,227,735
and
-1 x -21,227,735 = 21,227,735
Notice both answers equal 21,227,735
With that explanation out of the way, let's continue. Next, we take the number 21,227,735 and divide it by 2:
21,227,735 ÷ 2 = 10,613,867.5
If the quotient is a whole number, then 2 and 10,613,867.5 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 | 21,227,735 | |
| -1 | -21,227,735 |
Now, we try dividing 21,227,735 by 3:
21,227,735 ÷ 3 = 7,075,911.6667
If the quotient is a whole number, then 3 and 7,075,911.6667 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 | 21,227,735 | |
| -1 | -21,227,735 |
Let's try dividing by 4:
21,227,735 ÷ 4 = 5,306,933.75
If the quotient is a whole number, then 4 and 5,306,933.75 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 | 21,227,735 | |
| -1 | 21,227,735 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 197 | 937 | 985 | 4,531 | 4,685 | 21,551 | 22,655 | 107,755 | 184,589 | 922,945 | 4,245,547 | 21,227,735 |
| -1 | -5 | -23 | -115 | -197 | -937 | -985 | -4,531 | -4,685 | -21,551 | -22,655 | -107,755 | -184,589 | -922,945 | -4,245,547 | -21,227,735 |
Here are some more numbers to try:
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