A:
Positive:
1 x 213342017 x 304774317 x 125495361 x 349741119 x 179279427 x 499631037 x 205732939 x 7259
Negative:
-1 x -21334201-7 x -3047743-17 x -1254953-61 x -349741-119 x -179279-427 x -49963-1037 x -20573-2939 x -7259
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 21,334,201, 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 | 21,334,201 | |
| -1 | -21,334,201 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,334,201.
Example:
1 x 21,334,201 = 21,334,201
and
-1 x -21,334,201 = 21,334,201
Notice both answers equal 21,334,201
With that explanation out of the way, let's continue. Next, we take the number 21,334,201 and divide it by 2:
21,334,201 ÷ 2 = 10,667,100.5
If the quotient is a whole number, then 2 and 10,667,100.5 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 | 21,334,201 | |
| -1 | -21,334,201 |
Now, we try dividing 21,334,201 by 3:
21,334,201 ÷ 3 = 7,111,400.3333
If the quotient is a whole number, then 3 and 7,111,400.3333 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 | 21,334,201 | |
| -1 | -21,334,201 |
Let's try dividing by 4:
21,334,201 ÷ 4 = 5,333,550.25
If the quotient is a whole number, then 4 and 5,333,550.25 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 | 21,334,201 | |
| -1 | 21,334,201 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 61 | 119 | 427 | 1,037 | 2,939 | 7,259 | 20,573 | 49,963 | 179,279 | 349,741 | 1,254,953 | 3,047,743 | 21,334,201 |
| -1 | -7 | -17 | -61 | -119 | -427 | -1,037 | -2,939 | -7,259 | -20,573 | -49,963 | -179,279 | -349,741 | -1,254,953 | -3,047,743 | -21,334,201 |
Here are some more numbers to try:
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