A:
Positive:
1 x 210345597 x 300493713 x 161804317 x 123732791 x 231149119 x 176761221 x 951791547 x 13597
Negative:
-1 x -21034559-7 x -3004937-13 x -1618043-17 x -1237327-91 x -231149-119 x -176761-221 x -95179-1547 x -13597
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 21,034,559, 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 | 21,034,559 | |
| -1 | -21,034,559 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 21,034,559.
Example:
1 x 21,034,559 = 21,034,559
and
-1 x -21,034,559 = 21,034,559
Notice both answers equal 21,034,559
With that explanation out of the way, let's continue. Next, we take the number 21,034,559 and divide it by 2:
21,034,559 ÷ 2 = 10,517,279.5
If the quotient is a whole number, then 2 and 10,517,279.5 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 | 21,034,559 | |
| -1 | -21,034,559 |
Now, we try dividing 21,034,559 by 3:
21,034,559 ÷ 3 = 7,011,519.6667
If the quotient is a whole number, then 3 and 7,011,519.6667 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 | 21,034,559 | |
| -1 | -21,034,559 |
Let's try dividing by 4:
21,034,559 ÷ 4 = 5,258,639.75
If the quotient is a whole number, then 4 and 5,258,639.75 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 | 21,034,559 | |
| -1 | 21,034,559 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 17 | 91 | 119 | 221 | 1,547 | 13,597 | 95,179 | 176,761 | 231,149 | 1,237,327 | 1,618,043 | 3,004,937 | 21,034,559 |
| -1 | -7 | -13 | -17 | -91 | -119 | -221 | -1,547 | -13,597 | -95,179 | -176,761 | -231,149 | -1,237,327 | -1,618,043 | -3,004,937 | -21,034,559 |
Here are some more numbers to try:
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