A:
Positive:
1 x 218430655 x 436861319 x 114963531 x 70461595 x 229927155 x 140923589 x 370852945 x 7417
Negative:
-1 x -21843065-5 x -4368613-19 x -1149635-31 x -704615-95 x -229927-155 x -140923-589 x -37085-2945 x -7417
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 21,843,065, 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 | 21,843,065 | |
| -1 | -21,843,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,843,065.
Example:
1 x 21,843,065 = 21,843,065
and
-1 x -21,843,065 = 21,843,065
Notice both answers equal 21,843,065
With that explanation out of the way, let's continue. Next, we take the number 21,843,065 and divide it by 2:
21,843,065 ÷ 2 = 10,921,532.5
If the quotient is a whole number, then 2 and 10,921,532.5 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 | 21,843,065 | |
| -1 | -21,843,065 |
Now, we try dividing 21,843,065 by 3:
21,843,065 ÷ 3 = 7,281,021.6667
If the quotient is a whole number, then 3 and 7,281,021.6667 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 | 21,843,065 | |
| -1 | -21,843,065 |
Let's try dividing by 4:
21,843,065 ÷ 4 = 5,460,766.25
If the quotient is a whole number, then 4 and 5,460,766.25 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 | 21,843,065 | |
| -1 | 21,843,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 31 | 95 | 155 | 589 | 2,945 | 7,417 | 37,085 | 140,923 | 229,927 | 704,615 | 1,149,635 | 4,368,613 | 21,843,065 |
| -1 | -5 | -19 | -31 | -95 | -155 | -589 | -2,945 | -7,417 | -37,085 | -140,923 | -229,927 | -704,615 | -1,149,635 | -4,368,613 | -21,843,065 |
Here are some more numbers to try:
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