A:
Positive:
1 x 16487455 x 3297497 x 23553517 x 9698535 x 4710785 x 19397119 x 13855163 x 10115289 x 5705595 x 2771815 x 20231141 x 1445
Negative:
-1 x -1648745-5 x -329749-7 x -235535-17 x -96985-35 x -47107-85 x -19397-119 x -13855-163 x -10115-289 x -5705-595 x -2771-815 x -2023-1141 x -1445
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 1,648,745, 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 | 1,648,745 | |
| -1 | -1,648,745 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,648,745.
Example:
1 x 1,648,745 = 1,648,745
and
-1 x -1,648,745 = 1,648,745
Notice both answers equal 1,648,745
With that explanation out of the way, let's continue. Next, we take the number 1,648,745 and divide it by 2:
1,648,745 ÷ 2 = 824,372.5
If the quotient is a whole number, then 2 and 824,372.5 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 | 1,648,745 | |
| -1 | -1,648,745 |
Now, we try dividing 1,648,745 by 3:
1,648,745 ÷ 3 = 549,581.6667
If the quotient is a whole number, then 3 and 549,581.6667 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 | 1,648,745 | |
| -1 | -1,648,745 |
Let's try dividing by 4:
1,648,745 ÷ 4 = 412,186.25
If the quotient is a whole number, then 4 and 412,186.25 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 | 1,648,745 | |
| -1 | 1,648,745 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 17 | 35 | 85 | 119 | 163 | 289 | 595 | 815 | 1,141 | 1,445 | 2,023 | 2,771 | 5,705 | 10,115 | 13,855 | 19,397 | 47,107 | 96,985 | 235,535 | 329,749 | 1,648,745 |
| -1 | -5 | -7 | -17 | -35 | -85 | -119 | -163 | -289 | -595 | -815 | -1,141 | -1,445 | -2,023 | -2,771 | -5,705 | -10,115 | -13,855 | -19,397 | -47,107 | -96,985 | -235,535 | -329,749 | -1,648,745 |
Here are some more numbers to try:
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