A:
Positive:
1 x 196226037 x 280322911 x 178387313 x 150943177 x 25483991 x 215633143 x 1372211001 x 19603
Negative:
-1 x -19622603-7 x -2803229-11 x -1783873-13 x -1509431-77 x -254839-91 x -215633-143 x -137221-1001 x -19603
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 19,622,603, 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 | 19,622,603 | |
| -1 | -19,622,603 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,622,603.
Example:
1 x 19,622,603 = 19,622,603
and
-1 x -19,622,603 = 19,622,603
Notice both answers equal 19,622,603
With that explanation out of the way, let's continue. Next, we take the number 19,622,603 and divide it by 2:
19,622,603 ÷ 2 = 9,811,301.5
If the quotient is a whole number, then 2 and 9,811,301.5 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 | 19,622,603 | |
| -1 | -19,622,603 |
Now, we try dividing 19,622,603 by 3:
19,622,603 ÷ 3 = 6,540,867.6667
If the quotient is a whole number, then 3 and 6,540,867.6667 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 | 19,622,603 | |
| -1 | -19,622,603 |
Let's try dividing by 4:
19,622,603 ÷ 4 = 4,905,650.75
If the quotient is a whole number, then 4 and 4,905,650.75 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 | 19,622,603 | |
| -1 | 19,622,603 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 13 | 77 | 91 | 143 | 1,001 | 19,603 | 137,221 | 215,633 | 254,839 | 1,509,431 | 1,783,873 | 2,803,229 | 19,622,603 |
| -1 | -7 | -11 | -13 | -77 | -91 | -143 | -1,001 | -19,603 | -137,221 | -215,633 | -254,839 | -1,509,431 | -1,783,873 | -2,803,229 | -19,622,603 |
Here are some more numbers to try:
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